$ git clone -n https://src.fedoraproject.org/rpms/general-purpose-preprocessor.git /var/lib/mock/f40-build-793194-138804/root/chroot_tmpdir/scmroot/general-purpose-preprocessor
Cloning into '/var/lib/mock/f40-build-793194-138804/root/chroot_tmpdir/scmroot/general-purpose-preprocessor'...
$ git fetch origin d45e10953f0468ccd25116ba9337e207a8f3e258:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/general-purpose-preprocessor
 * [new ref]         d45e10953f0468ccd25116ba9337e207a8f3e258 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d45e109 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild