Merge "Fixing issue with adding existing connections which start in a conference." into sc-dev am: beb4dd05 am: 37f34f97 am: eb6ce519

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/15113220

Change-Id: Ie00e73bb7980b1dce9a7e17f072cbf1163914a1a