$ git clone -n https://src.fedoraproject.org/rpms/jaxb.git /var/lib/mock/f41-build-1197608-22351/root/chroot_tmpdir/scmroot/jaxb
Cloning into '/var/lib/mock/f41-build-1197608-22351/root/chroot_tmpdir/scmroot/jaxb'...
$ git fetch origin 387d602c105a2066849da2e8b11e198d3452edce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jaxb
 * [new ref]         387d602c105a2066849da2e8b11e198d3452edce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 387d602 Rebuilt for java-21-openjdk as system jdk