Fix metadata load each call#59

adriaandotcom wants to merge 2 commits intomainsimpleanalytics/scripts:mainfrom

zpyv59-codex/load-sa_metadata-on-appendmetadata()-and-add-testsimpleanalytics/scripts:zpyv59-codex/load-sa_metadata-on-appendmetadata()-and-add-testCopy head branch name to clipboard