Bug fixes: ---------- * fix relative paths for croot argument to CLI; test #2335 * fix several issues with zip_keys #2340 * fix output build number never applying #2340 * fix ensure_matching_hashes for strong/weak run_exports #2340 * fix indexing of channels, especially before testing packages #2341 * copy wheels and unextractable files (.sh) into the workdir with their original, un-hashed filename, for simplicity in working with them. #2343 * avoid attempting to overwrite existing files in the source cache #2343 * avoid unsatisfiable requirement errors by adding .* to specs that lack .* or >/</>=/<= #2344