$ git clone -n https://src.fedoraproject.org/rpms/mingw-cairo.git /var/lib/mock/f45-build-18398-515/root/chroot_tmpdir/scmroot/mingw-cairo
Cloning into '/var/lib/mock/f45-build-18398-515/root/chroot_tmpdir/scmroot/mingw-cairo'...
$ git fetch origin e800add2abcba0f3620c13fb2468e30a5e5229c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-cairo
 * [new ref]         e800add2abcba0f3620c13fb2468e30a5e5229c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e800add Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild