$ git clone -n https://src.fedoraproject.org/rpms/qmc2.git /var/lib/mock/f40-build-1183267-21996/root/chroot_tmpdir/scmroot/qmc2
Cloning into '/var/lib/mock/f40-build-1183267-21996/root/chroot_tmpdir/scmroot/qmc2'...
$ git fetch origin a269fbc416a68595c894bd12aa01519040780471:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qmc2
 * [new ref]         a269fbc416a68595c894bd12aa01519040780471 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a269fbc Improvements to upstream git patches: