when it has kidnapped its own civilians and forced them to fight
Every day!
It doesn't get shown in the western media, but if you subscribe to the local channels of big cities (Kiev/Odessa/Lviv/Kharkiv/etc.), or basically any sources actually covering what's happening in Ukraine (in Ukrainian or Russian language), you will see videos of TCK (I dunno how to properly translate it, but that's the government-military organization that does the kidnapping) posted almost every single day, people are caught on the streets and forcibly put into vans. Sometimes people manage to escape them, sometimes the crowd helps fight TCK off, but more often then not they get successfully kidnapped. Some villages got almost every men kidnapped that way (because previously they were scared to operate in big cities and preferred villages, but now they don't give a shit about anything).
A very small portion of that is documented here: https://uadraftmuseum.ch/