src/vs/workbench/contrib/mergeEditor/browser/view/mergeEditor.ts/MergeEditor/clearInput
class MergeEditor:	override clearInput(): void {
		super.clearInput();

		this._sessionDisposables.clear();
		this._toggleEditorOverwrite(false);

		for (const { editor } of [this.input1View, this.input2View, this.inputResultView]) {
			editor.setModel(null);
		}
	}