[TYPO3-english] Emptying typo3temp after every change

[Andreea Ciuprina]

Hello!

Every time I make a significant change (e.g. add another action method) to an extension, I have to not only clean the backend and frontend caches, but also completely empty the typo3temp folder, in order for the change to take place. 
Could somebody give me an explanation for this and maybe tell me if it is possible to avoid doing this?

Thank you.