$ git clone -n https://src.fedoraproject.org/rpms/cantata.git /var/lib/mock/f42-build-3355617-45025/root/chroot_tmpdir/scmroot/cantata
Cloning into '/var/lib/mock/f42-build-3355617-45025/root/chroot_tmpdir/scmroot/cantata'...
$ git fetch origin 4adecc50e0068d15038722c4003ade4377b7e5f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cantata
 * [new ref]         4adecc50e0068d15038722c4003ade4377b7e5f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4adecc5 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild