Jacoco report in JUnit report output directory - maven

Question

I have a simple Maven project configured to generate a JUnit report with the Surefire plugin, and a coverage report with Jacoco.
After running mvn test, I expect to find:
jacoco report files in reports/jacoco
surefire-report.html in reports/junit
However for some reason the Jacoco report files appear in both the reports/jacoco AND reports/junit folder:
Please help me to understand and correct.
pom.xml:
<build>
<plugins>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>${surefire.plugin.version}</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-report-plugin</artifactId>
<version>${surefire.plugin.version}</version>
<configuration>
<outputDirectory>${basedir}/reports/junit</outputDirectory>
</configuration>
<executions>
<execution>
<id>during-tests</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>${jacoco.plugin.version}</version>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>default-check</id>
<goals>
<goal>check</goal>
</goals>
<configuration>
<rules>
<rule>
<element>BUNDLE</element>
<limits>
<limit>
<counter>INSTRUCTION</counter>
<value>COVEREDRATIO</value>
<minimum>0.80</minimum>
</limit>
</limits>
</rule>
</rules>
</configuration>
</execution>
<execution>
<id>report</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/reports/jacoco</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
...