$ git clone -n https://src.fedoraproject.org/rpms/jack_capture.git /var/lib/mock/f40-build-2709718-71639/root/chroot_tmpdir/scmroot/jack_capture
Cloning into '/var/lib/mock/f40-build-2709718-71639/root/chroot_tmpdir/scmroot/jack_capture'...
$ git fetch origin 8d47bea2d40b5902cb4929017f6e2cb6b9c0b005:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jack_capture
 * [new ref]         8d47bea2d40b5902cb4929017f6e2cb6b9c0b005 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d47bea Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild