Update logic to look for the correct token if there are multiple entries.

This was mistaken for a bug with paste but the actual issue is:
1) enter a recipient
2) enter a few more other recipients
3) enter recipient from step 1 again
4) remove focus to create "more chip"
5) focus: we were not getting the correct recipient position from step
4; we were getting the first instance which was the chip from step 1

Fixes bug:5267557 duplicating an address causes odd behavior

Change-Id: I3fdc27c22820056f5470832e1ed634768283703f