Fixes #44940

src/vs/editor/browser/controller/mouseTarget.ts

@@ -28,6 +28,7 @@ export interface IViewZoneData {
 
 export interface IMarginData {
 	isAfterLines: boolean;
+	glyphMarginLeft: number;
 	glyphMarginWidth: number;
 	lineNumbersWidth: number;
 	offsetX: number;
@@ -602,6 +603,7 @@ export class MouseTargetFactory {
 			let offset = Math.abs(request.pos.x - request.editorPos.x);
 			const detail: IMarginData = {
 				isAfterLines: res.isAfterLines,
+				glyphMarginLeft: ctx.layoutInfo.glyphMarginLeft,
 				glyphMarginWidth: ctx.layoutInfo.glyphMarginWidth,
 				lineNumbersWidth: ctx.layoutInfo.lineNumbersWidth,
 				offsetX: offset

src/vs/editor/contrib/folding/folding.ts

@@ -298,7 +298,7 @@ export class FoldingController implements IEditorContribution {
 		switch (e.target.type) {
 			case MouseTargetType.GUTTER_LINE_DECORATIONS:
 				const data = e.target.detail as IMarginData;
-				const gutterOffsetX = data.offsetX - data.glyphMarginWidth - data.lineNumbersWidth;
+				const gutterOffsetX = data.offsetX - data.glyphMarginWidth - data.lineNumbersWidth - data.glyphMarginLeft;
 
 				// TODO@joao TODO@alex TODO@martin this is such that we don't collide with dirty diff
 				if (gutterOffsetX <= 10) {

src/vs/workbench/parts/scm/electron-browser/dirtydiffDecorator.ts

@@ -705,7 +705,7 @@ export class DirtyDiffController implements IEditorContribution {
 		}
 
 		const data = e.target.detail as IMarginData;
-		const gutterOffsetX = data.offsetX - data.glyphMarginWidth - data.lineNumbersWidth;
+		const gutterOffsetX = data.offsetX - data.glyphMarginWidth - data.lineNumbersWidth - data.glyphMarginLeft;
 
 		// TODO@joao TODO@alex TODO@martin this is such that we don't collide with folding
 		if (gutterOffsetX > 10) {