BUG: Update to 7.1.4 breaks rendering of plugin

[LimeUwe]

After upgrading to 7.1.4 from 7.1.4 one of our plugins brake the page rendering.

Error message:

(1/1) #1257246929 TYPO3Fluid\Fluid\View\Exception\InvalidTemplateResourceException
Tried resolving a template file for controller action "Default->Default" in format ".html", but none of the paths contained the expected template file (Default/Default.html). No paths configured.

I traced the reason down to this change in Classes/View/UncacheTemplateView.php:
in line 117:

old:

'parsedTemplate' => null,  

to

new:

'parsedTemplate' => $this->getCurrentParsedTemplate(),

Changing the line back to the preview code "fixes" the error.

[michael-binder]

I can confirm the issue. Is there possibly a missing configuration on our end, or should the code be checked to see if the template exists?

[xperseguers]

Stumbled upon the bug/crash as well.

[NamelessCoder]

The cause was a somewhat overzealous commit to remove what looked redundant on some TYPO3 versions. You should be able to temporarily repair that functionality by reverting or undoing 68d84ad. A permanent fix will of course be made, I'm just a bit short on time these days.

[h-e-l-l-o-w-o-r-l-d]

I can confirm this bug with TYPO3 12.4.38.