[TYPO3-core] RFC: #14258: t3lib_extMgm should provide API to determinde whether ext is installed or not

[Stefan Galinski]

Tolleiv.Nietsch wrote:

> Problem:
> For a long time "t3lib_extMgm::isLoaded()" was used to determine whether
> an extension is installed or not, but due to the "doNotLoadInFE" feature
> the result of "isLoaded" might not be enough to determine whether the
> extension really exists or not.

+1 by reading and testing (nice catch!)

-- 
Stefan Galinski