src/vs/workbench/contrib/mergeEditor/browser/model/mergeEditorModel.ts/MergeEditorModel/resetUnknown
class MergeEditorModel:	public resetUnknown(): void {
		transaction(tx => {
			for (const range of this.modifiedBaseRanges.get()) {
				if (this.getState(range).get().conflicting) {
					this.setState(range, ModifiedBaseRangeState.default, false, tx);
				}
			}
		});
	}