There are some things I do know that I forgot to mention: * This failure appears to have started when the attendees dialog widgets were converted to custom elements at bug 1522473, although there was so much other carnage going on there it's hard to tell. * It looks like when the bug occurs the code in `get attendees` is calling `this.getInputElement(4)` and there are not 4 rows. There should be four rows so I think `fitDummyRows` isn't called. But why?
Bug 1551110 Comment 2 Edit History
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There are some things I do know that I forgot to mention: * This failure appears to have started when the attendees dialog widgets were converted to custom elements at bug 1522473, although there was so much other carnage going on then it's hard to tell. * It looks like when the bug occurs the code in `get attendees` is calling `this.getInputElement(4)` and there are not 4 rows. There should be four rows so I think `fitDummyRows` isn't called. But why?