[FIXED JENKINS-18895] MavenModuleSetBuild.getResult is expensive.
(cherry picked from commit d1d524863cbb2f1f443fc4bf7c25933b7a31b85d)

Conflicts:
	changelog.html
[JENKINS-18895] Refined fix to not cache status during the build.
(cherry picked from commit 8d46aa6d976f5b0d89a4ad4969d455cd3a4add5c)
[FIXED JENKINS-18895] Refined fix once again.

(cherry picked from commit ec9b4f11866e80ae4a432b9127e71afddf30de86)