$ git clone -n https://src.fedoraproject.org/rpms/perl-IO-Compress-Zstd.git /var/lib/mock/f40-build-2305161-57067/root/chroot_tmpdir/scmroot/perl-IO-Compress-Zstd
Cloning into '/var/lib/mock/f40-build-2305161-57067/root/chroot_tmpdir/scmroot/perl-IO-Compress-Zstd'...
$ git fetch origin 21d0ab8204145c3926edd4213f520ad7ffeb6712:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-IO-Compress-Zstd
 * [new ref]         21d0ab8204145c3926edd4213f520ad7ffeb6712 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21d0ab8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild