$ git clone -n https://src.fedoraproject.org/rpms/dvgrab.git /var/lib/mock/f40-build-795728-140309/root/chroot_tmpdir/scmroot/dvgrab
Cloning into '/var/lib/mock/f40-build-795728-140309/root/chroot_tmpdir/scmroot/dvgrab'...
$ git fetch origin a703d0a5718637b2c90ab001bb04d9f844a5baee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dvgrab
 * [new ref]         a703d0a5718637b2c90ab001bb04d9f844a5baee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a703d0a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild