$ git clone -n https://src.fedoraproject.org/rpms/perl-PerlIO-buffersize.git /var/lib/mock/f40-build-732843-104937/root/chroot_tmpdir/scmroot/perl-PerlIO-buffersize
Cloning into '/var/lib/mock/f40-build-732843-104937/root/chroot_tmpdir/scmroot/perl-PerlIO-buffersize'...
$ git fetch origin 06ba342920c2362212b19ce9fb47b30cbdf07d6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-PerlIO-buffersize
 * [new ref]         06ba342920c2362212b19ce9fb47b30cbdf07d6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 06ba342 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild