Exception thrown with lfeditor 4.4.0 and TYPO3 8.7.26
With TYPO3 8.7.26 and lfeditor < 5.0.1, an exception is thrown in lfeditor BE module.
The reason is that TYPO3 8.7.26 raises the dependency on typo3fluid/fluid to ^2.5.5 So when upgrading, typo3fluid/fluid 2.6.1 is installed (^2.5.5 means >=2.5.5 and <3.0.0)
typo3fluid/fluid 2.6.1 introduced a breaking change in the AbstractConditionViewHelper, and this breaks the ExtendedIfViewHelper of lfeditor: the argument "condition" is not registered anymore by AbstractConditionViewHelper, and ExtendedIfViewHelper registers it only for TYPO3 < 8.
Maybe a fix for lfeditor 4 should be released?