$ git clone -n https://src.fedoraproject.org/rpms/powerpc-utils.git /var/lib/mock/f42-build-3356309-45027/root/chroot_tmpdir/scmroot/powerpc-utils
Cloning into '/var/lib/mock/f42-build-3356309-45027/root/chroot_tmpdir/scmroot/powerpc-utils'...
$ git fetch origin 1492f9cdc80bc3b76d7dc3a9e4d061b0817affe9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/powerpc-utils
 * [new ref]         1492f9cdc80bc3b76d7dc3a9e4d061b0817affe9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1492f9c Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild