$ git clone -n https://src.fedoraproject.org/rpms/jgoodies-forms.git /var/lib/mock/f40-build-2095795-50396/root/chroot_tmpdir/scmroot/jgoodies-forms
Cloning into '/var/lib/mock/f40-build-2095795-50396/root/chroot_tmpdir/scmroot/jgoodies-forms'...
$ git fetch origin 3e78dd5dde82ca78145f055e74f898bb164008af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jgoodies-forms
 * [new ref]         3e78dd5dde82ca78145f055e74f898bb164008af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e78dd5 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild