ALTER ENTITY ADD ATTRIBUTE drops system members (createdDate) on sibling generalization root — CE1613 across inheriting entities

[Chendodelangen]

Summary

ALTER ENTITY ... ADD ATTRIBUTE adds the attribute correctly, but re-serializes the module's domain-model unit and silently drops the system-member flags (createdDate) on an unrelated abstract entity in the same module. Pages in other modules whose grids/sort bars reference the inherited system member then fail validation with CE1613. None of mxcli's own validations catch this; DESCRIBE ENTITY output is identical before and after, so the damage is invisible until mx check / Studio Pro.

Environment

• mxcli version: v0.12.0 (2026-06-04T13:16:22Z)
• Mendix version: 10.24.15.93102 (MPR v2 / mprcontents)
• OS: Windows 11, amd64

Project shape needed to reproduce

• Module AuditTrail_Custom with an abstract entity AuditSuperClass that has system members enabled (DESCRIBE renders them as Owner: AutoOwner, ChangedBy: AutoChangedBy, CreatedDate: AutoCreatedDate, ChangedDate: AutoChangedDate).
• A plain sibling entity AuditTrail_Custom.AuditLog in the same domain model (NOT part of the hierarchy).
• A specialization in another module: WorkflowManagement.Task extends AuditTrail_Custom.AuditSuperClass.
• Pages with data grids that use the inherited system member createdDate (lowercase) in columns/sort bars.

Steps to reproduce

1. Baseline validation is clean: mx check AssetManagement.mpr → 0 errors.
2. Run:

   ALTER ENTITY AuditTrail_Custom."AuditLog" ADD ATTRIBUTE "AssetLabel": String(20)

   mxcli reports: Added attribute 'AssetLabel' to entity AuditTrail_Custom.AuditLog
3. Validate again: mx check AssetManagement.mpr

Expected behaviour

Only AuditLog gains the new attribute; nothing else in the unit changes. mx check stays at 0 errors.

Actual behaviour

mx check reports 7 errors, all in entities/pages that were never targeted:

[error] [CE1613] "The selected attribute 'WorkflowManagement.Task.createdDate' no longer exists." at Text 'text33'
[error] [CE1613] "The selected attribute 'WorkflowManagement.Task.createdDate' no longer exists." at Columns (1/4) of data grid 2 'dataGrid2_2'
[error] [CE1613] "The selected attribute 'AuditTrail_Custom.AuditSuperClass.createdDate' no longer exists." at Sort bar of data grid 2 'dataGrid2_2'
[error] [CE1613] "The selected attribute 'WorkflowManagement.Task.createdDate' no longer exists." at Columns (1/4) of data grid 2 'dataGrid2_2'
[error] [CE1613] "The selected attribute 'WorkflowManagement.Task.createdDate' no longer exists." at Sort bar of data grid 2 'dataGrid2_2'
[error] [CE1613] "The selected attribute 'WorkflowManagement.Task.createdDate' no longer exists." at Columns (1/5) of data grid 2 'dataGrid2_2'
[error] [CE1613] "The selected attribute 'WorkflowManagement.Task.createdDate' no longer exists." at Sort bar of data grid 2 'dataGrid2_2'

Git shows exactly two files changed: AssetManagement.mpr and one mprcontents/.../*.mxunit (the AuditTrail_Custom domain-model unit) — i.e. the re-serialization of that unit lost the system-member configuration of AuditSuperClass, which breaks every inheriting entity's createdDate references project-wide.

Why this is nasty

• DESCRIBE ENTITY AuditTrail_Custom.AuditSuperClass produces byte-identical output before and after — mxcli cannot see its own damage.
• mxcli check / mxcli lint pass; only Studio Pro / mx check catches it.
• The errors surface in modules far away from the ALTER target, so the cause is hard to trace without a git baseline.

Relevant log line (mxcli-2026-06-10.log)

{"time":"2026-06-10T16:50:51.2663371+02:00","level":"INFO","msg":"session_start","version":"v0.12.0","go":"go1.26.4","os":"windows","arch":"amd64","mode":"batch","args":["C:\\Claude\\AssetTest\\mxcli.exe","-p","AssetManagement.mpr","-c","ALTER ENTITY AuditTrail_Custom.\"AuditLog\" ADD ATTRIBUTE \"AssetLabel\": String(20)"],"pid":17184}
{"time":"2026-06-10T16:50:51.8499958+02:00","level":"INFO","msg":"execute","stmt_type":"AlterEntityStmt","stmt_summary":"AlterEntityStmt","duration_ms":569}
{"time":"2026-06-10T16:50:52.40756+02:00","level":"INFO","msg":"session_end","commands_executed":2,"errors_count":0,"duration_s":1}

Diagnostic bundle

Available: yes — mxcli-diag-20260610-165511.tar.gz (can be shared on request).

Recovery used

git reset --hard to the pre-ALTER checkpoint (restoring .mpr + model units together), after which mx check is clean again.

[github-actions]

Issue Triage

Summary:
ALTER ENTITY … ADD ATTRIBUTE incorrectly re‑serializes the domain‑model unit, causing system‑member flags (e.g., createdDate) on an unrelated abstract entity to be dropped, which breaks inherited attributes in other modules.

Checklist (bug report)

Required info	Present?	Details
mxcli version	✅	v0.12.0 (2026-06-04T13:16:22Z)
Mendix version	✅	10.24.15.93102 (MPR v2)
Scenario (what was attempted)	✅	ALTER ENTITY AuditTrail_Custom."AuditLog" ADD ATTRIBUTE "AssetLabel": String(20)
Expected output	✅	Only the target entity gains the new attribute; mx check stays at 0 errors
Experienced output	✅	mx check shows multiple CE1613 errors; system members lost on AuditSuperClass
AI bug report (diag bundle / session log)	✅	Session log lines included; diagnostic bundle mxcli-diag-20260610-165511.tar.gz available

All required information is present. Thank you for the detailed report! If you can share the diagnostic bundle when requested, it will help us investigate further.

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