Since IntelliJ 2019.3 this file appeared in our git changes. It seems these are just cached information about remote repositories that are defined in Maven/Gradle.pull/3221/head^2
@@ -30,6 +30,7 @@ | |||
# auto-import. | |||
# .idea/artifacts | |||
# .idea/compiler.xml | |||
# .idea/jarRepositories.xml | |||
# .idea/modules.xml | |||
# .idea/*.iml | |||
# .idea/modules |