(core) Fix some bugs with ChoiceList in summary tables, and evaluation of lookups.

Summary:
Addresses several issues:
- Error 'Cannot modify summary group-by column' when changing Text ->
  ChoiceList in the presence of summary tables.
- Error 'ModifyColumn in unexpected position' when changing ChoiceList -> Text
  in the presence of summary tables.
- Double-evaluation of trigger formulas in some cases.

Fixes include:
- Fixed verification that summary group-by columns match the underlying ones,
  and added comments to explain.
- Avoid updating non-metadata lookups after each doc-action (early lookups
  generated extra actions to populate summary tables, causing the 'ModifyColumn
  in unexpected position' bug)
- When updating formulas, do update lookups first.
- Made a client-side tweak to avoid a JS error in case of some undos.

Solution to reduce lookups is based on https://phab.getgrist.com/D3069?vs=on&id=12445,
and tests for double-evaluation of trigger formulas are taken from there.

Add a new test case to protect against bugs caused by incorrect order of
evaluating #lookup columns.

Enhanced ChoiceList browser test to check a conversion scenario in the presence
of summary tables, previously triggering bugs.

Test Plan: Various tests added or enhanced.

Reviewers: alexmojaki

Reviewed By: alexmojaki

Subscribers: jarek

Differential Revision: https://phab.getgrist.com/D3184

app/client/widgets/ChoiceTextBox.ts

@@ -47,7 +47,7 @@ export class ChoiceTextBox extends NTextBox {
       cssChoiceTextWrapper(
         dom.style('justify-content', (use) => use(this.alignment) === 'right' ? 'flex-end' : use(this.alignment)),
         dom.domComputed((use) => {
-          if (use(row._isAddRow)) { return null; }
+          if (this.isDisposed() || use(row._isAddRow)) { return null; }
 
           const formattedValue = use(this.valueFormatter).format(use(value));
           if (formattedValue === '') { return null; }