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#Mapycz (now #Mapycom) from #Seznam use #OpenStreetMap everywhere except their home country - Czech Republic, where they have their own proprietary maps.
There have been rumours in the #OSM community that they actually copy from OSM. Today I found proof that they really do.
I mapped a new park in #Brno just by surveying and taking notes last year. Later the park showed up on Mapy.com with exactly the same path layout. The new orthophoto is out and it revealed that I didn't get everything right and Seznam got it wrong too. Exactly the same mistakes.

Not cool, Seznam.

@systemz @sesivany @organicmaps Google Maps seems not to work with Russian.b

@systemz @organicmaps I still hope it's just a failure of an individual or individuals who wanted to make their job easier and the company will fix it. It's only a problem for the Czech Republic, elsewhere it's pure OSM with their really good renderer on the top.
I use OsmAnd myself.

@sesivany @systemz @organicmaps My sympathy and hopes for friendliness to the community of Seznam.cz and their map team lowered a lot a few months ago. But on the other hand, I have heard from some source, I think internal, that they have switched to OpenSTreetMap layers for some objects even in Czech republic, I think that park benches has been mentioned. Interesting that yours have not propagated to their maps yet, but they do considerable data processing and cleanups/unification during planet import into their maps formats. So it can take some time. But anyway, it would worth to ask them if the given layer of the paths is from OSM for whole Czech republic and if they have committed back or provided by other means all their corrections and data from their proceeding sources.

@systemz @sesivany @organicmaps I'm not sure what's wrong with omaps suddenly. The thing was started by Belarusian guys (2011), later on bought by mail.ru and then sold to Daegu. After Daegu deal the original creators forked into omaps. The project was ever since transparent and only recently blocked from github due to pretty dubios explanation from M$ (like one contributor used IP in US sanctioned country). They reacted to it by creating Forgejo instance of their own and continue as before.