From the article: When Marguerite Duras Got Kicked Out of the Communist Party
This was part of their justification.
Technically speaking, it was probably happening sooner than 1950, since Trotsky arrived in Turkey in 1929.
Dunking on Tankies from a leftist perspective.
A tankie is someone who defends/supports authoritarian or even totalitarian regimes who call themselves "socialist". The term originated from people supporting the 1956 invasion of Hungary by the Soviet Union. Nowadays they are just terminally online, denying genocides, and falling for totalitarian propaganda and calling such regimes "true democracies". remember to censor usernames when necessary.