$ git clone -n https://src.fedoraproject.org/rpms/jline.git /var/lib/mock/f38-build-side-42-init-devel-923373-28737/root/chroot_tmpdir/scmroot/jline
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-923373-28737/root/chroot_tmpdir/scmroot/jline'...
$ git fetch origin 8a1a5937ec1c4eb694093eefa0b3e5e1f17f34eb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jline
 * [new ref]         8a1a5937ec1c4eb694093eefa0b3e5e1f17f34eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a1a593 Version 3.23.0