fix(tracing): only set span.status=OK if UNSET - #1248

fix(tracing): only set span.status=OK if UNSET#1248

harshachinta merged 4 commits into

googleapis:maingoogleapis/python-spanner:mainfrom

odeke-em:trace-fix-trace_call-unconditionally-setting-span_status_OKodeke-em/python-spanner:trace-fix-trace_call-unconditionally-setting-span_status_OKCopy head branch name to clipboard