Core

When the option "Enable unsupported extensions" has not been enabled then then "Retrieve/Update" from "Import Extensions" works fine: the file typo3temp/extensions.xml.gz is created and TYPO3 shows "The extensions list has been updated and now contains 1408 extension entries".

However, when choosing "Look up" next, one might still get "No matching extensions found" until the option "Enable unsupported extensions" is activated.

Note that this is a per-user setting. So: if one admin user has set it up, then another admin user might still encounter the problem described above.

This might not be an issue for a final release. But I guess there're several options to make this more intuitive anyway:

1 do not download any unsupported extensions when this option is disabled

2 the line "The extensions list has been updated" could be enhanced to show the number of supported extensions

3 "Enable unsupported extensions" could be an option next to the "Look up" button, rather than a user setting

For now, however, I just hope others will find this comment when searching the bug database, to save some time trying to figger out what's wrong...

(issue imported from #M2742)