$ git clone -n https://src.fedoraproject.org/rpms/ghc-GLUT.git /var/lib/mock/f45-build-9898-411/root/chroot_tmpdir/scmroot/ghc-GLUT
Cloning into '/var/lib/mock/f45-build-9898-411/root/chroot_tmpdir/scmroot/ghc-GLUT'...
$ git fetch origin 3841cd2ebeed2c9bf51203a8d814cd848f0099d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-GLUT
 * [new ref]         3841cd2ebeed2c9bf51203a8d814cd848f0099d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3841cd2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild