$ git clone -n https://src.fedoraproject.org/rpms/jgoodies-forms.git /var/lib/mock/f41-build-797173-13657/root/chroot_tmpdir/scmroot/jgoodies-forms
Cloning into '/var/lib/mock/f41-build-797173-13657/root/chroot_tmpdir/scmroot/jgoodies-forms'...
$ git fetch origin 99f040d3b6f6adcda84452f71729675357f498c3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jgoodies-forms
 * [new ref]         99f040d3b6f6adcda84452f71729675357f498c3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 99f040d Rebuilt for java-21-openjdk as system jdk