Index: Jenkins/tools.groovy
===================================================================
--- Jenkins/tools.groovy	(revision 143cbf19b5b2e9a81f3a51915a26e83590c6ce2b)
+++ Jenkins/tools.groovy	(revision 6cdec7e36fb8d0b33053f90d257ccb3d05dd7958)
@@ -64,8 +64,8 @@
 PrevGitNewRef = ''
 def GitLogMessage(String oldRef = '', String newRef = '') {
-	if (!PrevGitOldRef || !oldRef) return "\nERROR retrieveing git information!\n"
+	if (!PrevGitOldRef && !oldRef) return "\nERROR retrieveing git information!\n"
 	PrevGitOldRef = oldRef
 
-	if (!PrevGitNewRef || !newRef) return "\nERROR retrieveing git information!\n"
+	if (!PrevGitNewRef && !newRef) return "\nERROR retrieveing previous git information!\n"
 	PrevGitNewRef = newRef