$ git clone -n https://src.fedoraproject.org/rpms/d52.git /var/lib/mock/f41-build-1034597-18640/root/chroot_tmpdir/scmroot/d52
Cloning into '/var/lib/mock/f41-build-1034597-18640/root/chroot_tmpdir/scmroot/d52'...
$ git fetch origin 7146b0ada5a500a335de112b9d51fdf47419e420:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/d52
 * [new ref]         7146b0ada5a500a335de112b9d51fdf47419e420 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7146b0a Eliminate use of obsolete %patchN syntax (#2283636)