$ git clone -n https://src.fedoraproject.org/rpms/perl-Sys-MemInfo.git /var/lib/mock/f40-build-779551-130370/root/chroot_tmpdir/scmroot/perl-Sys-MemInfo
Cloning into '/var/lib/mock/f40-build-779551-130370/root/chroot_tmpdir/scmroot/perl-Sys-MemInfo'...
$ git fetch origin 4b5e7b398e3c369be10c2dc90b8e3e52652f11b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Sys-MemInfo
 * [new ref]         4b5e7b398e3c369be10c2dc90b8e3e52652f11b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b5e7b3 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild