$ git clone -n https://src.fedoraproject.org/rpms/mingw-pixman.git /var/lib/mock/f45-build-18631-524/root/chroot_tmpdir/scmroot/mingw-pixman
Cloning into '/var/lib/mock/f45-build-18631-524/root/chroot_tmpdir/scmroot/mingw-pixman'...
$ git fetch origin 5f013971ffbd4ba0e1688bca67bb8d08587a280a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-pixman
 * [new ref]         5f013971ffbd4ba0e1688bca67bb8d08587a280a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f01397 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild