Fix spec shows source archive is not used (#1448)

test/tests/test_specs/test_spec_archive/specs/functions.yaml

@@ -0,0 +1,56 @@
+apiVersion: fission.io/v1
+kind: Function
+metadata:
+  creationTimestamp: null
+  name: sourcearchive
+  namespace: default
+spec:
+  InvokeStrategy:
+    ExecutionStrategy:
+      ExecutorType: poolmgr
+      MaxScale: 0
+      MinScale: 0
+      SpecializationTimeout: 0
+      TargetCPUPercent: 0
+    StrategyType: execution
+  configmaps: null
+  environment:
+    name: dummyfoobarnode
+    namespace: default
+  functionTimeout: 60
+  package:
+    functionName: source
+    packageref:
+      name: sourcearchive
+      namespace: default
+  resources: {}
+  secrets: null
+
+---
+apiVersion: fission.io/v1
+kind: Function
+metadata:
+  creationTimestamp: null
+  name: deployarchive
+  namespace: default
+spec:
+  InvokeStrategy:
+    ExecutionStrategy:
+      ExecutorType: poolmgr
+      MaxScale: 0
+      MinScale: 0
+      SpecializationTimeout: 0
+      TargetCPUPercent: 0
+    StrategyType: execution
+  configmaps: null
+  environment:
+    name: dummyfoobarnode
+    namespace: default
+  functionTimeout: 60
+  package:
+    functionName: deploy
+    packageref:
+      name: deployarchive
+      namespace: default
+  resources: {}
+  secrets: null