$ git clone -n https://src.fedoraproject.org/rpms/ghc-http-types.git /var/lib/mock/f38-build-side-42-init-devel-586772-26119/root/chroot_tmpdir/scmroot/ghc-http-types
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-586772-26119/root/chroot_tmpdir/scmroot/ghc-http-types'...
$ git fetch origin c5bb05833268f323191fedde2e9f32d917fe455d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-http-types
 * [new ref]         c5bb05833268f323191fedde2e9f32d917fe455d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5bb058 Convert to %autorelease and %autochangelog