fix(developer): fix for incorrectly-stateful regex

- take out the /g flag for regex used with .exec

For #10734

common/web/types/src/ldml-keyboard/pattern-parser.ts

@@ -400,7 +400,7 @@ export class VariableParser {
   /**
    * Pattern for matching a capture set reference `($[set])`
    */
-  public static readonly CAPTURE_SET_REFERENCE = /\(\$\[([0-9A-Za-z_]{1,32})\]\)/g;
+  public static readonly CAPTURE_SET_REFERENCE = /\(\$\[([0-9A-Za-z_]{1,32})\]\)/;
 
   /**
    * `$[1:variable]`

developer/src/kmc-ldml/src/compiler/tran.ts

@@ -126,7 +126,6 @@ export abstract class TransformCompiler<T extends TransformCompilerType, TranBas
     let cookedFrom = transform.from;
 
     cookedFrom = sections.vars.substituteStrings(cookedFrom, sections);
-    // TODO: handle 'map' case
     const mapFrom = VariableParser.CAPTURE_SET_REFERENCE.exec(cookedFrom);
     const mapTo = VariableParser.MAPPED_SET_REFERENCE.exec(transform.to || '');
     if (mapFrom && mapTo) { // TODO-LDML: error cases