$ git clone -n https://src.fedoraproject.org/rpms/ghc9.8.git /var/lib/mock/f42-build-864233-172271/root/chroot_tmpdir/scmroot/ghc9.8
Cloning into '/var/lib/mock/f42-build-864233-172271/root/chroot_tmpdir/scmroot/ghc9.8'...
$ git fetch origin 1ec0d6acf1c39a0d6f269ab5b767668b65886149:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc9.8
 * [new ref]         1ec0d6acf1c39a0d6f269ab5b767668b65886149 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ec0d6a update to 9.8.4