$ git clone -n https://src.fedoraproject.org/rpms/octave-symbolic.git /var/lib/mock/f42-build-3356292-45027/root/chroot_tmpdir/scmroot/octave-symbolic
Cloning into '/var/lib/mock/f42-build-3356292-45027/root/chroot_tmpdir/scmroot/octave-symbolic'...
$ git fetch origin 50303b2a25e7abb512c9833507fb595037d06ace:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octave-symbolic
 * [new ref]         50303b2a25e7abb512c9833507fb595037d06ace -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50303b2 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild