$ git clone -n https://src.fedoraproject.org/rpms/jakarta-xml-ws.git /var/lib/mock/f40-build-1866807-25015/root/chroot_tmpdir/scmroot/jakarta-xml-ws
Cloning into '/var/lib/mock/f40-build-1866807-25015/root/chroot_tmpdir/scmroot/jakarta-xml-ws'...
$ git fetch origin f0ea73c5a42fb3ac05f663d4a1f56479dae18674:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jakarta-xml-ws
 * [new ref]         f0ea73c5a42fb3ac05f663d4a1f56479dae18674 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0ea73c Rebuilt for java-21-openjdk as system jdk