CREATE ASSOCIATION cross-module hangs intermittently (flaky)

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Description

CREATE ASSOCIATION with parent and child entities in different modules sometimes hangs indefinitely. The issue is intermittent — isolated reproduction succeeds, but under concurrent/sequential test load it can hang.

Reproduction

CREATE ASSOCIATION Administration.TestCross FROM Administration.Entity1 TO AgentCore.Entity2 TYPE Reference OWNER Default;

• Isolated: Works correctly (tested 2/2 times)
• Under load (sequential test session): Hung with timeout (observed during automated test execution of 95 entity tests)

Environment

• mxcli: v0.7.0-257-ga07e7e0
• Project: EnquiriesManagement (Mendix 11.8.0)
• OS: macOS arm64

Classification

Flaky — cannot reliably reproduce in isolation. May be triggered by accumulated state from prior write operations in the same session, or by file locking.

Related

• docs: add manual test case documentation for all MDL command areas #386 (test case documentation — entity test 10.4)

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Issue Triage

Summary
The user reports that CREATE ASSOCIATION between entities in different modules works in isolation but hangs intermittently under sequential or concurrent test load.

Checklist (bug report)

Required info	Present?	Details
mxcli version	✅	v0.7.0-257-ga07e7e0
Mendix version	✅	11.8.0
Scenario (what was tried)	✅	CREATE ASSOCIATION Administration.TestCross FROM Administration.Entity1 TO AgentCore.Entity2 TYPE Reference OWNER Default;
Expected output	❌	Not explicitly stated (should be successful creation of the association)
Experienced output	✅	Command hangs indefinitely (times out) under load
AI bug report (mxcli diag --bundle or session log)	❌	Not provided

What’s missing

• A clear statement of the expected behavior (e.g., “the command should finish instantly and create the association”).
• The diagnostic bundle or session log from mxcli diag --bundle (or at least the relevant session log) to help investigate the intermittent hang.

Polite request
Could you please add the expected output for this command and attach the output of mxcli diag --bundle (or the relevant session log)? That will help us pinpoint why the command hangs under load. Thank you!

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Automated triage via OpenRouter — workflow source

[retran]

Reproducing test cases: entity-test-cases.md §10.4 (flaky — works in isolation, hangs under sequential test load)