How can I autoload nars without bumping the version number?

[Andrew Zah]

Hi,

If I have for example a foobar-1.0.0.nar in $NIFI_HOME/extensions, and I 
rebuild it, nifi currently doesn't detect that the file has changed and 
therefore doesn't reload it.

How can I get nifi to automatically reload it in this case? (and unload 
nars if they leave the extensions directory).

Thanks,
Andrew