$ git clone -n https://src.fedoraproject.org/rpms/perl-Regexp-Trie.git /var/lib/mock/f39-build-1439263-32240/root/chroot_tmpdir/scmroot/perl-Regexp-Trie
Cloning into '/var/lib/mock/f39-build-1439263-32240/root/chroot_tmpdir/scmroot/perl-Regexp-Trie'...
$ git fetch origin 7240b827fbf158bcc7b1ced28dd8475fd3a7284a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Regexp-Trie
 * [new ref]         7240b827fbf158bcc7b1ced28dd8475fd3a7284a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7240b82 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild