$ git clone -n https://src.fedoraproject.org/rpms/ghc-tasty-hunit.git /var/lib/mock/f38-build-side-42-init-devel-871707-28444/root/chroot_tmpdir/scmroot/ghc-tasty-hunit
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-871707-28444/root/chroot_tmpdir/scmroot/ghc-tasty-hunit'...
$ git fetch origin c22c37db79675631f27b5120ca7e6a4e7985e198:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-tasty-hunit
 * [new ref]         c22c37db79675631f27b5120ca7e6a4e7985e198 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c22c37d Convert to %autorelease and %autochangelog