Hotfix/4163 user sharing issue

Fix for #4163. The sharing/receiving flags on contacts were getting set badly. Was able to reproduce both bugs reported here consistently and test that this fix solves both of them. 

The two bugs were:

1) Incorrect "Only Sharing With Me" Aspect View
2) userA shares with userB. userB shares with userA. userA stops sharing with userB. userB, who still shares with userA, no longer sees userA in aspects.