hasTemplate() will result in an error when drawing templates from code

[Marian-Kechlibar]

Version: 3.0.22

Bug Description

I draw a certain latte file with path = $path in an Ajax request using the following code:

            $templateParams = [Parameters::PARAMETER_ID => $id, 'historyRecord' => $historyRecord, 'data' => $data];
            $renderedHtml = $this->templateFactory->createTemplate($this)->renderToString($path, $templateParams);

The code is located in a handle.... method of a Presenter and processes signals.

This works perfectly as long as I don't use the new method hasTemplate() within that latte. If I do, the following error is encountered:

Typed property Latte\Essential\CoreExtension::$engine must not be accessed before initialization

I am attaching the compiled Latte file. The critical line is 135:

`

templates-Synchronizationnode-syncnode-history-detail.latte--6e140406f1.php

`
This invokes

vendor\latte\latte\src\Latte\Essential\CoreExtension.php:202

where the error happens.