$ git clone -n https://src.fedoraproject.org/rpms/kf5-kimap.git /var/lib/mock/f40-build-787372-134746/root/chroot_tmpdir/scmroot/kf5-kimap
Cloning into '/var/lib/mock/f40-build-787372-134746/root/chroot_tmpdir/scmroot/kf5-kimap'...
$ git fetch origin c7b4c157e5e6661f3b513e6325a5849c206086af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kimap
 * [new ref]         c7b4c157e5e6661f3b513e6325a5849c206086af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c7b4c15 23.08.5