MapView Zoom Resets when OnViewRendered Defined on View

[djrpascu]

The zoom value seems to reset when trying to pinch zoom or use zoom controls when the mapview first loads.

Reproduce Issue

• Clone sample repo here: https://github.com/djrpascu/GeoBlazorBugMapViewZoomReset
• Wait for map to load, without panning, try zoom in/out with control, or pinch zoom, the map zoom should reset.

Similar to the issue reported here:
#188
@TimPurdum

• Like in the issue above, if you pan the map first, then try zoom controls, the zoom is retained.

• Remove OnViewRendered="OnViewRendered" from MapView in MyMapComponent.razor. Try again, and should work.

[TimPurdum]

@djrpascu thanks for the clear bug report and repro! I can confirm everything you're seeing. This is definitely a render-cycle issue between GeoBlazor and Blazor, as you discovered by removing OnViewRendered. With any luck, I will be able to find a fairly simple fix.

[djrpascu]

@TimPurdum thanks for the quick PR on this. will keep an eye out for 2.5.2 and test. mahalo!

[djrpascu]

Installed 2.5.2 and confirmed issue is fixed. Much thanks!

[TimPurdum]

@djrpascu awesome news!