ok, so "saving clause" https://www.irs.gov/businesses/tax-treaties-can-affect-your-income-tax "Most tax treaties have a saving clause that preserves the right of each country to tax its own citizens and treaty residents as if no tax treaty were in effect" However, on other hands, I see in the tax treaty the next, Article 6: "Income derived by a RESIDENT of a Contracting State .... may be taxed in that other State" So I don't see the "saving clause" here. I see that taxation going on by country, where property located.
If you have some knowledge, could you explain how it works for US citizens, resident aliens, GC holders in a particular example?
About tax credit - it's clear. It can be claimed on form 1116.
