Intellij IDEA is freezing during Maven project (pom.xml file) reimporting

There is a stupid bug for the maven projects at the intellij which is a conflict of pom.xml and and Intellij project files (.iml, .ipr, .iws). To solve this conflict, just delete these all IntelliJ project files. Then open and reimport project just over the pom.xml. IntelliJ will create all project files from the begining.