$ git clone -n https://src.fedoraproject.org/rpms/kdesdk-kioslaves.git /var/lib/mock/f42-build-863543-171710/root/chroot_tmpdir/scmroot/kdesdk-kioslaves
Cloning into '/var/lib/mock/f42-build-863543-171710/root/chroot_tmpdir/scmroot/kdesdk-kioslaves'...
$ git fetch origin 523083075c176a0e0dd4cf537c15bdd137a6f46c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdesdk-kioslaves
 * [new ref]         523083075c176a0e0dd4cf537c15bdd137a6f46c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5230830 24.12.0