$ git clone -n https://src.fedoraproject.org/rpms/ghc-string-qq.git /var/lib/mock/f45-build-10807-424/root/chroot_tmpdir/scmroot/ghc-string-qq
Cloning into '/var/lib/mock/f45-build-10807-424/root/chroot_tmpdir/scmroot/ghc-string-qq'...
$ git fetch origin 8f9ccaa289a4c56047ed98d0eeec338e2035f29d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-string-qq
 * [new ref]         8f9ccaa289a4c56047ed98d0eeec338e2035f29d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f9ccaa Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild