[feat][core] resolve conditionals between OSt demo and multiregional

PRODX-6926

Change-Id: I7262609e9fc75f1d3f3a5e159349d124d89f424a
diff --git a/src/com/mirantis/mk/KaasUtils.groovy b/src/com/mirantis/mk/KaasUtils.groovy
index ed9d9de..b769c5c 100644
--- a/src/com/mirantis/mk/KaasUtils.groovy
+++ b/src/com/mirantis/mk/KaasUtils.groovy
@@ -125,10 +125,12 @@
         case 'aws':
             awsOnDemandDemo = true
             common.warningMsg('Forced running additional kaas deployment with AWS provider according multiregional demo request')
+            break
         case 'os':
             if (enableOSDemo == false) {
                 error('incompatible triggers: [disable-os-demo] and multiregional deployment based on OSt management region cannot be applied simultaneously')
             }
+            break
     }
 
     common.infoMsg("""