Data binding issue with iron-list 1.3.9 when table is inside of "dom-if" template

[web-padawan]

iron-list v 1.3.9 has introduced some changes related to the painting performance. As a result, in some cases data binding does not propagate (and only works for first item).

There is definitely some kind of "first item magic" here. Still investigating the reason, will try to add more details soon.

[Saulis]

Thanks for the report!

At least in the previous versions so far, iron-list first renders one item, measures the height and tries to calculate how many items more are needed to cover the viewport.

[malthusyau]

I am having the same issue as well. It will update the first item of each lazy-loaded "page"

[Saulis]

Can you guys modify this jsbin so that it reproduces the issue? http://jsbin.com/luzofe/edit?html,output

[web-padawan]

@Saulis see http://jsbin.com/nugixaziwe/1/edit?html,console,output

[web-padawan]

seems that bug is only reproduced when inside of dom-if template.