$ git clone -n https://src.fedoraproject.org/rpms/apache-commons-math.git /var/lib/mock/f41-build-1019991-17995/root/chroot_tmpdir/scmroot/apache-commons-math
Cloning into '/var/lib/mock/f41-build-1019991-17995/root/chroot_tmpdir/scmroot/apache-commons-math'...
$ git fetch origin ebf2e2a2a08150242e4480c31943345e34c81edd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apache-commons-math
 * [new ref]         ebf2e2a2a08150242e4480c31943345e34c81edd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ebf2e2a Rebuilt for java-21-openjdk as system jdk