• for example, if for some reason i set <phaze>generate-test-resources</phaze> for the execution of some plugin that adds some new files/folders to build, then on Synchronize performing these changes are not considered.
  

For example, with the following code the sources_to_add/test folder never appears as test root in idea module:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.0</version>
<executions>
<execution>
<id>add extra test sources</id>
<phase>generate-test-resources</phase>
<goals>
<goal>add-test-source</goal>
</goals>
<configuration>
<sources>
<source>sources_to_add/test</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>

Issue was resolved