Fixed issue with prepopulated email id for checking user name already exits.
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1

* upstream/release-6.6.3.a1:
  Error message misplaced for users who don't indicate resource type when uploading resources to collections issue resolved
  "6.4 [My Classes] "Favorite Classes" did not load from top Fixed"
  Red scroll bar css color removed
Merge pull request #2048 from anilgooru/release-6.6.3.a1

Fixed issue with prepopulated email id for checking user name already exits.