$ git clone -n https://src.fedoraproject.org/rpms/R-processx.git /var/lib/mock/f40-build-2285510-55678/root/chroot_tmpdir/scmroot/R-processx
Cloning into '/var/lib/mock/f40-build-2285510-55678/root/chroot_tmpdir/scmroot/R-processx'...
$ git fetch origin 02a67ea250aac525efcd392d8e6b0a592d25652d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-processx
 * [new ref]         02a67ea250aac525efcd392d8e6b0a592d25652d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 02a67ea Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild