fix #56384

src/vs/workbench/services/textfile/common/textFileService.ts

@@ -733,7 +733,7 @@ export abstract class TextFileService extends Disposable implements ITextFileSer
 
 			// Handle target models if existing (if target URI is a folder, this can be multiple)
 			let handleTargetModelPromise: TPromise<any> = TPromise.as(void 0);
-			const dirtyTargetModels = this.getDirtyFileModels().filter(model => isEqualOrParent(model.getResource(), target, !platform.isLinux /* ignorecase */));
+			const dirtyTargetModels = this.getDirtyFileModels().filter(model => isEqualOrParent(model.getResource(), target, false /* do not ignorecase, see https://github.com/Microsoft/vscode/issues/56384 */));
 			if (dirtyTargetModels.length) {
 				handleTargetModelPromise = this.revertAll(dirtyTargetModels.map(targetModel => targetModel.getResource()), { soft: true });
 			}