Fixes #137225. The range of the active bracket pair must now strictly contain the cursor position.

src/vs/editor/common/core/range.ts

@@ -100,6 +100,23 @@ export class Range {
 		return true;
 	}
 
+	/**
+	 * Test if `position` is in `range`. If the position is at the edges, will return false.
+	 * @internal
+	 */
+	public static strictContainsPosition(range: IRange, position: IPosition): boolean {
+		if (position.lineNumber < range.startLineNumber || position.lineNumber > range.endLineNumber) {
+			return false;
+		}
+		if (position.lineNumber === range.startLineNumber && position.column <= range.startColumn) {
+			return false;
+		}
+		if (position.lineNumber === range.endLineNumber && position.column >= range.endColumn) {
+			return false;
+		}
+		return true;
+	}
+
 	/**
 	 * Test if range is in this range. If the range is equal to this range, will return true.
 	 */

src/vs/editor/common/model/textModel.ts

@@ -2457,7 +2457,7 @@ export class TextModel extends Disposable implements model.ITextModel, IDecorati
 			const bracketsContainingActivePosition =
 				(startLineNumber <= activePosition.lineNumber && activePosition.lineNumber <= endLineNumber)
 					// Does active position intersect with the view port? -> Intersect bracket pairs with activePosition
-					? bracketPairs.filter(bp => bp.range.containsPosition(activePosition))
+					? bracketPairs.filter(bp => Range.strictContainsPosition(bp.range, activePosition))
 					: this._bracketPairColorizer.getBracketPairsInRange(
 						Range.fromPositions(activePosition)
 					);