$ git clone -n https://src.fedoraproject.org/rpms/kf5-calendarsupport.git /var/lib/mock/f40-build-787901-134965/root/chroot_tmpdir/scmroot/kf5-calendarsupport
Cloning into '/var/lib/mock/f40-build-787901-134965/root/chroot_tmpdir/scmroot/kf5-calendarsupport'...
$ git fetch origin a6f547ca06ff0426f2a3490a3fc59ab113073b0c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-calendarsupport
 * [new ref]         a6f547ca06ff0426f2a3490a3fc59ab113073b0c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6f547c 23.08.5