How to cut the map of Russia the Yandex maps?

Hello, tell me, pist where to fix,
you need to cut the map of Russia and to conceal other countries
here
https://tech.yandex.ru/maps/jsbox/2.1/regions_mask

and I get this :

https://jsfiddle.net/svuks/fsc6jhrv/
April 8th 20 at 09:38
1 answer
April 8th 20 at 09:40

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