Flaky e2e test: Create user for contacts.user replace.for an offline user.creates new user for the first version of a contact to sync and conflicting replacements ignored

[dianabarsan]

Describe the issue
This test sometimes creates a feedback document and throws this error:

0-4] Error in "Create user for contacts.user replace.for an offline user.creates new user for the first version of a contact to sync and conflicting replacements ignored"
Error: done() called multiple times in test <Create user for contacts user replace for an offline user creates new user for the first version of a contact to sync and conflicting replacements ignored> of file /home/runner/work/cht-core/cht-core/tests/e2e/default/transitions/create-user-for-contacts.replace-user.wdio-spec.js
    at createMultipleDoneError (/home/runner/work/cht-core/cht-core/node_modules/@wdio/mocha-framework/node_modules/mocha/lib/errors.js:428:13)
    at multiple (/home/runner/work/cht-core/cht-core/node_modules/@wdio/mocha-framework/node_modules/mocha/lib/runnable.js:288:24)
    at done (/home/runner/work/cht-core/cht-core/node_modules/@wdio/mocha-framework/node_modules/mocha/lib/runnable.js:299:14)
    at /home/runner/work/cht-core/cht-core/node_modules/@wdio/mocha-framework/node_modules/mocha/lib/runnable.js:369:11
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
[0-4] 2025-11-26T21:38:45.948Z ERROR webdriver: WebDriverError: invalid session id when running "elements" with method "POST" and args "{"using":"css selector","value":"mm-modal-layout"}"
[0-4] 2025-11-26T21:39:26.905Z ERROR webdriver: WebDriverError: invalid session id when running "elements" with method "POST" and args "{"using":"css selector","value":".enketo form #form-title"}"
[0-4] 2025-11-26T21:39:38.484Z ERROR webdriver: WebDriverError: invalid session id when running "elements" with method "POST" and args "{"using":"css selector","value":".enketo form #form-title"}"
[0-4] FAILED in chrome - file:///tests/e2e/default/transitions/create-user-for-contacts.replace-user.wdio-spec.js

The feedback document that I am seeing is this:
https://gist.github.com/dianabarsan/efbfd0440e22d07dcf9893eaf6a863af

With the main error being:

    "arguments": [
      "\"Error selecting contact\"",
      "\"conflict\\n    at 12084 (https://localhost/main.js:1:802839)\\n    at a (https://localhost/runtime.js:1:143)\\n    at 95554 (https://localhost/main.js:1:3189225)\\n    at a (https://localhost/runtime.js:1:143)\\n    at https://localhost/main.js:11:650457\\n    at n (https://localhost/runtime.js:1:1119)\\n    at https://localhost/main.js:1:55\""
    ],
    "info": {
      "message": "Document update conflict",
      "stack": "conflict\n    at 12084 (https://localhost/main.js:1:802839)\n    at a (https://localhost/runtime.js:1:143)\n    at 95554 (https://localhost/main.js:1:3189225)\n    at a (https://localhost/runtime.js:1:143)\n    at https://localhost/main.js:11:650457\n    at n (https://localhost/runtime.js:1:1119)\n    at https://localhost/main.js:1:55"
    },

Describe the improvement you'd like
Stabilize the test

Describe alternatives you've considered