[jaladh-singhal]

Fixes FIREFLY-2076

A period in a table or chart ID (e.g. tbl_id='2mass.catalog' from the Python client) left the table's default chart empty, and show_chart(chartId='color.mag') drew a blank chart. Lodash string paths treat . as nesting, so updateSet(state, chartId, …) in ChartsCntlr stored the chart under state['default-2mass'].catalog while readers looked up the whole key; TableStatsCntlr had the same mismatch for column stats. Image plot_ids and region layer IDs with periods were checked and already work. No firefly_client changes are needed: IDs with periods now work as-is.

See the first commit's diff for the fix (array paths, plus CSS.escape for the chart Save button's #${chartId} selector) and dotted-ID reducer tests.

Additional refactor: The second commit (separately revertable) replaces lodash get/set/updateSet with ?., [] and spreads in those reducers and chart getters, keeping no-op CHART_UPDATE/CHART_TRACE_REMOVE returning the same state.

Testing

https://firefly-2076-period-in-id-bug.irsakubedev.ipac.caltech.edu/firefly/

Using firefly_client pointed at the URL above (fc = FireflyClient.make_client(url=..., launch_browser=False), then open fc.get_firefly_url()):

• fc.show_table("http://irsa.ipac.caltech.edu/TAP/sync?FORMAT=IPAC_TABLE&QUERY=SELECT+*+FROM+fp_psc+WHERE+CONTAINS(POINT('J2000',ra,dec),CIRCLE('J2000',202.4841667,47.23055556,0.125))=1", tbl_id='2mass.catalog') → Active Chart shows the default chart (empty before this fix); table, coverage and catalog overlay as usual
• fc.show_chart(data=[{'tbl_id': '2mass.catalog', 'x': 'tables::j_m', 'y': 'tables::h_m-k_m', 'type': 'scatter', 'mode': 'markers'}], chartId='color.mag') → chart renders under Pinned Chart
• On that chart: Save button opens the Save Chart dialog; selecting a table row moves the highlighted point; Chart Options → change X → Apply updates the axis
• Remove the table → its charts are cleaned up, no console errors
• Regression: the same steps with IDs without periods

[stargaser]

I tested it and it works great! Thank you for this fix.

[loitly]

Changes look good.