"Problem saving workflow" when tags disabled

[rizalfauzie]

Describe the bug
Got error message when saving workflow Problem saving workflow when workflow tag is disabled. But the workflow still saved on database after i reload and load from workflow menu, everything is okay.

To Reproduce
Steps to reproduce the behavior:

1. Clean install with latest version
2. Run with export N8N_WORKFLOW_TAGS_DISABLED=true && n8n start
3. Create new workflow
4. make some changes
5. Click Save button, on first time it's okay
6. Make some changes again
7. Then click Save again
8. The error message appear

Expected behavior
The success message after workflow is saved to database.

Environment (please complete the following information):

• OS: Mac OS 12.1 Intel
• n8n Version 0.187.2
• Node.js Version 18.6.0
• Database system SQLite
• Operation mode own

[rizalfauzie]

Additional output from debug console log:

TypeError: Cannot read properties of undefined (reading 'length')
    at /Users/*****/.nvm/versions/node/v18.6.0/lib/node_modules/n8n/dist/src/Server.js:577:38
    at async /Users/*****/.nvm/versions/node/v18.6.0/lib/node_modules/n8n/dist/src/ResponseHelper.js:90:26

[brianinoa]

Thanks @rizalfauzie I'm taking a look at this

[janober]

The fix just got merged with #3792 and will be released with the next version.

[janober]

Fix got released with [email protected]