$ git clone -n https://src.fedoraproject.org/rpms/jgoodies-common.git /var/lib/mock/f40-build-2332462-59158/root/chroot_tmpdir/scmroot/jgoodies-common
Cloning into '/var/lib/mock/f40-build-2332462-59158/root/chroot_tmpdir/scmroot/jgoodies-common'...
$ git fetch origin 6d89bb52741788edbde7329f8a87405cb284df45:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jgoodies-common
 * [new ref]         6d89bb52741788edbde7329f8a87405cb284df45 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d89bb5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild