src/vs/workbench/contrib/mergeEditor/browser/view/mergeEditor.ts/MergeEditor/setEditorVisible
class MergeEditor:	protected override setEditorVisible(visible: boolean, group: IEditorGroup | undefined): void {
		super.setEditorVisible(visible, group);

		for (const { editor } of [this.input1View, this.input2View, this.inputResultView]) {
			if (visible) {
				editor.onVisible();
			} else {
				editor.onHide();
			}
		}

		this._ctxIsMergeEditor.set(visible);
		this._toggleEditorOverwrite(visible);
	}