$ git clone -n https://src.fedoraproject.org/rpms/ghc-xdg-basedir.git /var/lib/mock/f45-build-10970-425/root/chroot_tmpdir/scmroot/ghc-xdg-basedir
Cloning into '/var/lib/mock/f45-build-10970-425/root/chroot_tmpdir/scmroot/ghc-xdg-basedir'...
$ git fetch origin 974fa0077641cf96da7b4904c4728bfa7d3717b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-xdg-basedir
 * [new ref]         974fa0077641cf96da7b4904c4728bfa7d3717b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 974fa00 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild