[Found in test: map.html] SVG shadow error

[Ovilia]

Version

4.2.1

Steps to reproduce

Run test/map.html with SVG. Hover on the map.

What is expected?

The SVG shadow is the same as Canvas.

Canvas (correct):

What is actually happening?

The SVG shadow is not the same as Canvas.

SVG (wrong):

[echarts-bot]

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[pissang]

#5429 Map with pattern also have a similar issue. Both are caused because map group has a very large scale value. I think they can be fixed together.