src/vs/workbench/contrib/comments/browser/commentReply.ts/CommentReply/getPendingComment
class CommentReply:	public getPendingComment(): string | null {
		const model = this.commentEditor.getModel();

		if (model && model.getValueLength() > 0) { // checking length is cheap
			return model.getValue();
		}

		return null;
	}