$ git clone -n https://src.fedoraproject.org/rpms/eg.git /var/lib/mock/f41-build-1020588-18013/root/chroot_tmpdir/scmroot/eg
Cloning into '/var/lib/mock/f41-build-1020588-18013/root/chroot_tmpdir/scmroot/eg'...
$ git fetch origin 92a4115d61750ea41183f93dbf171c5f0c69fd05:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/eg
 * [new ref]         92a4115d61750ea41183f93dbf171c5f0c69fd05 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 92a4115 Eliminate use of obsolete %patchN syntax (#2283636)