$ git clone -n https://src.fedoraproject.org/rpms/perl-HTML-Gumbo.git /var/lib/mock/f40-build-779626-130430/root/chroot_tmpdir/scmroot/perl-HTML-Gumbo
Cloning into '/var/lib/mock/f40-build-779626-130430/root/chroot_tmpdir/scmroot/perl-HTML-Gumbo'...
$ git fetch origin 923696fd00db7f055f7acc20a1a073b6071f8948:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTML-Gumbo
 * [new ref]         923696fd00db7f055f7acc20a1a073b6071f8948 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 923696f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild