Regression: mouseenter event is fired on wrong layer

[pathmapper]

mapbox-gl-js version: v0.46.0

browser: Chrome on Linux

Beginning with v.0.45.0 a mouseenter event is fired on the wrong layer if two layers are using the same GeoJSON source and the mouseenter listener is on the second layer.

Steps to Trigger Behavior

1. Add two line layers using the same source to a map.
2. Set up a mouseenter listener on the second layer to change the line-color of this layer.
3. Hover over the second layer.

Link to Demonstration

https://jsbin.com/resezeyosu/edit?html,output

Expected Behavior

line-color of the second layer changes when hovering over the second layer.

Demonstration with v0.44.2: https://jsbin.com/bicatukoxa/edit?html,output

Actual Behavior

line-color of the second-layer changes when hovering over the first layer