Well, this is not always how it works: many factors can lead to a reverse of legislation, such as stonger lobbying, backfire from a government held together by strong opposite ideas, or simply the measure might have solved the problem and a different rule might have been adopted (btw, assuming you are from the US, I think the idea of undoing medicare is a good example).

I have lived in the NL just when the change in squatting legislation was happening (2009-2015). My impression was that more and more parties that were ideologically against it got popular and this changed the agenda of policymakers, given also the pressure estate investors that were hunting for a treasure. But existing squats were definitely well integrated with the cities I lived in (Utrecht, Amsterdam), sign that this law somehow became part of the city identity.