Comment 8 for bug 1455560

This might be relevant: https://docs.angularjs.org/error/ngRepeat/dupes. Don't know if changing to "track by $index" will cause new / undesired UI effects tho. Larry, your comment about manually removing the tag is helpful in finding a minimum scenario to reproduce this. Could you provide some more details on the set of node / tag associations that you have and the steps you did to reproduce? Something like "nodes x,y,z with tags tagA, tagB", "node w nodes with tagA", "node v with tagB". "Filtered by tags:(!tagA,tagB)", then "removed tagB from nodes v,y,z" "manually removed tagB to filter on: tags:(tagA)", then get the error. It seems like this should be reproducible on both Firefox and Chrome. Exact tag names may be helpful in light of 1441864.