I reported this bug a few years back and it got fixed. In the last hour it reappeared.
When I want to log my work time (e.g. "1h") in a task, the "time remaining" field is auto-filled with the local variant "0 Min." which blocks me from hitting the "Save" button.

Workaround:
- clear the "time remaining" field manually each time u want to log time
- or replace it with the non-local format "0m"
