I’m using Unreal Engine 4.12.0-0+UE4, compiled from commit ab237f4. (I also tried the current latest release version - 442f3b7, and the current bleeding edge development version - 6e9a01a but those both crash on startup)
I chose to create a new project from the top-down template, and then clicked Source control to initialise with git. This stages some files, including a gitignore. So I commit that, then add the rest of the unstaged files, assuming that since the project creates a gitignore already, that means the rest is not supposed to be ignored. But now, every time I click save in the editor, the file “Content/TopDownCPP/Maps/TopDownExampleMap.umap” changes in content. Why? Should this file be gitignored? Should all .umap files be gitignored?