Error when adding new lines to cells with breakpoints

[jtpio]

Following these steps:

• Add a breakpoint to a cell
• Edit the cell by adding a new line

Triggers this error:

Uncaught DOMException: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node

[jtpio]

Wondering whether we still need to listen on renderLine events:

debugger/src/handlers/cell.ts

Lines 200 to 218 in 4aa2864

	protected onNewRenderLine = (editor: Editor, line: any) => {
	const lineInfo = editor.lineInfo(line);
	if (lineInfo.handle && lineInfo.handle.order === false) {
	return;
	}
	const doc: Doc = editor.getDoc();
	const linesNumber = doc.lineCount();
	if (this.previousLineCount !== linesNumber) {
	let lines: number[] = [];
	doc.eachLine(line => {
	if ((line as ILineInfo).gutterMarkers) {
	const lineInfo = editor.lineInfo(line);
	lines.push(lineInfo.line + 1);
	}
	});
	this.breakpointsModel.changeLines(lines);
	this.previousLineCount = linesNumber;
	}
	};

[jtpio]

Eventually we will want to replace this logic to send the dumpCell and setBreakpoints requests when a user modifies the content of a cell.