$ git clone -n https://src.fedoraproject.org/rpms/jacop.git /var/lib/mock/f41-build-1182592-21975/root/chroot_tmpdir/scmroot/jacop
Cloning into '/var/lib/mock/f41-build-1182592-21975/root/chroot_tmpdir/scmroot/jacop'...
$ git fetch origin 3c902867b2ebf705f127cedbf1e5ff5d663381ac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jacop
 * [new ref]         3c902867b2ebf705f127cedbf1e5ff5d663381ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c90286 Rebuilt for java-21-openjdk as system jdk