$ git clone -n https://src.fedoraproject.org/rpms/srpc.git /var/lib/mock/f42-build-3351377-45013/root/chroot_tmpdir/scmroot/srpc
Cloning into '/var/lib/mock/f42-build-3351377-45013/root/chroot_tmpdir/scmroot/srpc'...
$ git fetch origin 47845ec88015db7d8f2ca92c27e16548573192e2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/srpc
 * [new ref]         47845ec88015db7d8f2ca92c27e16548573192e2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47845ec Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild