Provide target property for mouseenter/over/leave/out events

[hyperknot]

mapbox-gl-js version: 0.45.0-beta.1
browser: Chrome 66 / macOS

Steps to Trigger Behavior

1. use e.target in a mouseenter callback

Link to Demonstration

https://codesandbox.io/s/7wyv3pwkyj

Expected Behavior

I didn't find this breaking change in 0.45 release notes, so it might be a bug.

[jfirebaugh]

Thanks for the report. Indeed, the delegated events mouseenter, mouseover, mouseleave, and mouseout do not have a target property.

This isn't a breaking change, however. As the example you posted shows, the same behavior is present in 0.44.2.

[hyperknot]

It was still present in 0.44.2:
https://codesandbox.io/s/03qo50z3rw

// I'm not using this feature at all, just wanted to report that this is changed in 0.45

[jfirebaugh]

Ah, you're right -- sorry, I misread the CSS include in your example as a script tag.

I think I see a quick fix we can make for 0.45.

[hyperknot]

You didn't misread it, in the original example I accidentally had both script and package.json includes, with mismatching versions.