$ git clone -n https://src.fedoraproject.org/rpms/ghc-setenv.git /var/lib/mock/f38-build-side-42-init-devel-701515-27070/root/chroot_tmpdir/scmroot/ghc-setenv
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-701515-27070/root/chroot_tmpdir/scmroot/ghc-setenv'...
$ git fetch origin d9c42b464d4893b37f0931a3d8ebb3a29c7a2f6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-setenv
 * [new ref]         d9c42b464d4893b37f0931a3d8ebb3a29c7a2f6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9c42b4 Convert to %autorelease and %autochangelog