$ git clone -n https://src.fedoraproject.org/rpms/ghc-http-client-restricted.git /var/lib/mock/f39-build-1930555-43110/root/chroot_tmpdir/scmroot/ghc-http-client-restricted
Cloning into '/var/lib/mock/f39-build-1930555-43110/root/chroot_tmpdir/scmroot/ghc-http-client-restricted'...
$ git fetch origin 0533ff4fa0bfe25f779b58c9e9c5d887a9a3fee9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-http-client-restricted
 * [new ref]         0533ff4fa0bfe25f779b58c9e9c5d887a9a3fee9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0533ff4 bump release