This issue affects TYPO3 12.0.0-dev (latest main)

Steps to reproduce¶

1. Go to Template module > 'info/modify' > edit 'setup' field > save

or

2. Go to Template module > 'info/modify' > edit 'constants' field > save

or

3. Go to Template module > 'info/modify' > edit 'description' field > save

Result:

A "Toast" green message appears in the upper right corner, that shows "[No title]" instead of the actual title "Main TypoScript Rendering" (see attached image)

It does not happen if you

5. Go to Template module > 'info/modify' > edit 'title' field > save

6. Go to Template module > 'info/modify' > click on 'Edit the whole template record' field > save