Obs.setValueBoolean should not set value for non boolean concept

When a non boolean obs has a valueCoded and setValueBoolean is called, it overwrites its value. This should not happen because the setValueBoolean method description clearly states that:

Sets the value of this obs to the specified valueBoolean if this obs has a boolean concept.

This led to the failure of ObsTest.isDirty() when apache commons-beanutils was upgraded from 1.7.0 to 1.9.3
Details can be found in the link to the Talk Discussion.