And the bug is still present. Reported in the late and earlier betas and tickets submitted.

[.83] AI can still take anomaly under player ship which was already a repeat of even earlier posting  [.50][Bug] AI ships can enter player occupied tiles.  

This is a prime bug and should get priority to get fixed. Why am i saying this? Not because i say so, but because this bug allows the AI to play by different rules than the human player. And in this case a valid strategy is simply meaningless against the AI.

For whoever who wants to take a look: The Autosave before and the Autosave after.

Note: This is an experimental game which includes all of my custom ships, custom ship classes, custom ship components, custom star bases modules, experimental diminishing return sensors (range per mass) and all of the bug fixes i could make in the xml files (Ideology, Planetary projects, Tech defs for all races, and Improvements). So expect weird behaviour of the UI.