Since a few Weeks I coudn't add tags to my articles, there was a 500 error in the AJAX Request and the input field was readonly.
The error was a Memory exception >500MB, and can be solved by editing
core/components/articles/processors/extras/gettags.class.php
replace:
$articles = $parent->getMany('Children',array('deleted' => 0)); $articleIDs = array(); foreach($articles as $article){ $articleIDs[] = $article->id; }
width:
$templateVariable = $this->modx->getObject('modTemplateVar', array('name' => 'articlestags'));
This performes much better and the error is solved. I also created a pull request: