Git java eclipse stop tracking .recommenders

I haven't had this problem before Eclipse Luna (I updated from Kepler just few days ago).
Although I added to .recommenders to .gitignore it keeps tracking it.

$ git status
On branch master
Your branch is up-to-date with 'origin/master'.

Changes not staged for commit:
  (use "git add/rm <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

        modified:   .recommenders/caches/identified-project-coordinates.json
        deleted:    .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_3.fdt
        deleted:    .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_3.fdx
        deleted:    .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_3.fnm
        deleted:    .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_3.frq
        deleted:    .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_3.nrm
        deleted:    .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_3.prx
        deleted:    .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_3.tii
        deleted:    .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_3.tis
        modified:   .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/segments.gen
        deleted:    .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/segments_4
        modified:   .recommenders/repository/http___download_eclipse_org_recommenders_models_luna_/org/ecli
.properties

Untracked files:
  (use "git add <file>..." to include in what will be committed)

        .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_5.fdt
        .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_5.fdx
        .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_5.fnm
        .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_5.frq
        .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_5.nrm
        .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_5.prx
        .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_5.tii
        .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/_5.tis
        .recommenders/index/http___download_eclipse_org_recommenders_models_luna_/segments_6

no changes added to commit (use "git add" and/or "git commit -a")

Here is my .gitignore file:

*target*
*.jar
*.war
*.ear
*.class

# eclipse specific git ignore
*.pydevproject
.project
.metadata
bin/**
tmp/**
tmp/**/*
*.tmp
*.bak
*.swp
*~.nib
local.properties
.classpath
.settings/
.loadpath
.recommenders/

# External tool builders
.externalToolBuilders/

# Locally stored "Eclipse launch configurations"
*.launch

If I do git rm -rf --cached it removes it, but soon starts tracking again - as soon as my colleague makes changes in his files and push it on Bitbucket and I do pull.
How should I fix this problem permanently?