$ git clone -n https://src.fedoraproject.org/rpms/ghc-uuid-types.git /var/lib/mock/f45-build-10950-425/root/chroot_tmpdir/scmroot/ghc-uuid-types
Cloning into '/var/lib/mock/f45-build-10950-425/root/chroot_tmpdir/scmroot/ghc-uuid-types'...
$ git fetch origin 2d15a0d0e6b1fea2b5586311e4d5d9760b76df69:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-uuid-types
 * [new ref]         2d15a0d0e6b1fea2b5586311e4d5d9760b76df69 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2d15a0d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild