Sync breaks after a failed push

[wonder-sk]

If a push of a new version of the project fails for some reason (server error, network problem, ...), pending changes will be left in the working directory. However, the tool does a sanity check for any pending changes when woken up, and it will refuse to resume sync:

There are pending changes in the local directory - please review and push manually!

The tool keeps running, but does nothing - only sleeps and then complains about pending changes.