I installed a fresh core from git master and run the installer with an existing database.

On the database installation screen "Eine vorhandene Installation aktualisieren"
(update an existing installation):

I see - instead of text line output in the text area on the line

"Run me from the command line please."

and the spinner rotates.

In former times, this text area showed a dump of text lines in an textarea terminal-like window.

Regression ?

Version: 1.21.x
Severity: normal