#1100 Delete and rebuild the source folder -> Completion is lost

[Anonymous]

To reproduce the issue:

I'm under Linux with Aptana Studio, build: 2.0.3.1265134283 / pydev 1.5.5

* add a folder to the pydev python path.
* completion is working well.
* delete the source folder from file system
* create the source folder on the file system
* completion doesn't work anymore.

To get the completion back I remove the folder from python path, validate, re add it
and validate.

I'm using zc.buidlout to deploy project with a recipe called collective.recipe.omelette. This recipe build folders and symlink to reproduce the tree of all sources. I'm using about 290 eggs so I will not add all of them with the pydev panel. This is my only one option.