$ git clone -n https://src.fedoraproject.org/rpms/openslide.git /var/lib/mock/f45-build-21107-579/root/chroot_tmpdir/scmroot/openslide
Cloning into '/var/lib/mock/f45-build-21107-579/root/chroot_tmpdir/scmroot/openslide'...
$ git fetch origin 12a8ea6e3828313cac6b896b4700293b9c8ba63b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openslide
 * [new ref]         12a8ea6e3828313cac6b896b4700293b9c8ba63b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12a8ea6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild