Add comment for why grails-bom must be excluded

json-testing-support/build.gradle

@@ -10,6 +10,10 @@ ext.set('projectDesc', 'JSON Views Testing Support')
 
 dependencies {
 
+    // Note: the bom has to be excluded on grails dependencies otherwise it will be detected as snapshot
+    // (even though none of these projects have a version that is snapshot).
+    // This behavior is only seen on a non-buildsnapshot project version.
+
     api project(':views-json'), { // Used in public API
         exclude group: 'org.grails', module: 'grails-bom'
     }