$ git clone -n https://src.fedoraproject.org/rpms/mingw-cairomm.git /var/lib/mock/f41-build-1037563-18804/root/chroot_tmpdir/scmroot/mingw-cairomm
Cloning into '/var/lib/mock/f41-build-1037563-18804/root/chroot_tmpdir/scmroot/mingw-cairomm'...
$ git fetch origin 29c74bf90de9c52cad8427cebde632ebdf854771:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-cairomm
 * [new ref]         29c74bf90de9c52cad8427cebde632ebdf854771 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 29c74bf Eliminate use of obsolete %patchN syntax (#2283636)