$ git clone -n https://src.fedoraproject.org/rpms/jgoodies-forms.git /var/lib/mock/f40-build-718148-13078/root/chroot_tmpdir/scmroot/jgoodies-forms
Cloning into '/var/lib/mock/f40-build-718148-13078/root/chroot_tmpdir/scmroot/jgoodies-forms'...
$ git fetch origin 8f14ba43e6c8bbf9df49a4fb3f18d7b782fa421f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jgoodies-forms
 * [new ref]         8f14ba43e6c8bbf9df49a4fb3f18d7b782fa421f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f14ba4 Rebuilt for java-21-openjdk as system jdk