$ git clone -n https://src.fedoraproject.org/rpms/jakarta-xml-ws.git /var/lib/mock/f38-build-side-42-init-devel-685507-26759/root/chroot_tmpdir/scmroot/jakarta-xml-ws
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-685507-26759/root/chroot_tmpdir/scmroot/jakarta-xml-ws'...
$ git fetch origin 049e1a5eb6e47f0136f0372fabed8d84108c6b44:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jakarta-xml-ws
 * [new ref]         049e1a5eb6e47f0136f0372fabed8d84108c6b44 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 049e1a5 New upstream release 4.0.0