$ git clone -n https://src.fedoraproject.org/rpms/sqlgrey.git /var/lib/mock/f41-build-1198300-22368/root/chroot_tmpdir/scmroot/sqlgrey
Cloning into '/var/lib/mock/f41-build-1198300-22368/root/chroot_tmpdir/scmroot/sqlgrey'...
$ git fetch origin 858e4b58e1a72605045c328fc3fb56c172ea73ac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sqlgrey
 * [new ref]         858e4b58e1a72605045c328fc3fb56c172ea73ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 858e4b5 Eliminate use of obsolete %patchN syntax (#2283636)