"Lazy-loading tree grid" test is invalid (and issue).

[GordonSmith]

1. The code does not actually do a lazy load. To fix add "true" to the DeferredWrapper @ line 239:

testCountryStores= new Observable(new DeferredWrapper(testSyncCountryStore, true));

2. Having made the change expand the bottom items:
   
   Then click on "Show All", you then end up with:
   
   Oddly to "fix" the view, you just need to move the "mouse over" the bottom few rows...

[kfranqueiro]

Thanks for the report; we'll have to look into this. I have a feeling it's strongly related to the transitioning code in the tree module - it doesn't occur on older IE where CSS transitions aren't available, but it happens everywhere else I've tried.

[GordonSmith]

Is there any way to "disable CSS transitions" as a workaround?

[dylans]

@GordonSmith a brute force method to test @kfranqueiro's comment would be to change https://github.com/SitePen/dgrid/blob/master/tree.js#L178 to hasTransitionend = false,

[kfranqueiro]

@edhager investigated this and discovered there was some old code we could pull out to resolve this issue. Ed, @msssk, and myself all tested and couldn't find any adverse effects, so I've pushed the change.

I've also added an enableTransitions column definition property which can be set to false to more easily disable transitions in the event they cause more problems and need to be disabled for the time being. This will also be present at instance level in dgrid 0.4 via enableTreeTransitions.

[matsamuel]

It is documented that this issue has been fixed in dgrid 3.16 however we are using 3.16 and still seeing the same issue. As a temporary measure we are setting "enableTransitions" to "false" for the moment (as that alleviates the problem). Is it possible that this issue was re-introduced some how before 3.16 went out? It's also possible that I'm just seeing a different occurrence of the same problem. Either way can this issue please be re-opened?