A lot of files in contentModel.xml Follow

I am using Rider with Unity and recently I've updated Rider to 2017.2 and it generated indexLayout.xml file inside .idea folder with this content:

<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="ContentModelUserStore">
    <explicitIncludes />
    <explicitExcludes />
  </component>
</project>

Since then my contentModel.xml file in .idea folder contains a line for every file in my project. Before the update it used to be a small file with couple of excluded unity folders. This behavior is very inconvenient because this file changes every time a new file is added to the project. Another problem is that I often commit part of my changes to the git repository and right now I always commit contentModel.xml which contains lines for files that are not yet commited.

Is this a normal behavior for new Rider version or did I accidentally enabled some setting? I am also using .ignore plugin, but I already tried to disable it and it did't helped.

Sorry for bad English.