$ git clone -n https://src.fedoraproject.org/rpms/ghc-X11.git /var/lib/mock/f45-build-9942-411/root/chroot_tmpdir/scmroot/ghc-X11
Cloning into '/var/lib/mock/f45-build-9942-411/root/chroot_tmpdir/scmroot/ghc-X11'...
$ git fetch origin 1445c02ba0ed04177b4383301a3ca5cd69ce432d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-X11
 * [new ref]         1445c02ba0ed04177b4383301a3ca5cd69ce432d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1445c02 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild