$ git clone -n https://src.fedoraproject.org/rpms/kf5-calendarsupport.git /var/lib/mock/f39-build-1641771-40204/root/chroot_tmpdir/scmroot/kf5-calendarsupport
Cloning into '/var/lib/mock/f39-build-1641771-40204/root/chroot_tmpdir/scmroot/kf5-calendarsupport'...
$ git fetch origin 860520d2c1b74ad2b5adf0232eba03714c0a262f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-calendarsupport
 * [new ref]         860520d2c1b74ad2b5adf0232eba03714c0a262f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 860520d 23.08.2