make sure version is defined when versions exist

Author: ahmedhamidawan

client/src/components/Workflow/Editor/Index.vue

@@ -1124,6 +1124,11 @@ export default {
                 const versions = await getVersions(this.id);
                 this.versions = versions;
 
+                // If version is not defined, set it to the latest version
+                if (this.version === undefined || this.version === null) {
+                    this.version = versions[versions.length - 1].version;
+                }
+
                 await this._loadCurrent(this.id, data.version);
             } catch (response) {
                 this.onWorkflowError("Saving workflow failed...", response, {

client/src/components/Workflow/Editor/WorkflowAttributes.vue

@@ -22,7 +22,11 @@
                 <i>(switch to latest)</i>
             </GLink>
             <i v-else> (latest version)</i>
-            <WorkflowVersionSelector :version="version" :versions="versions" @onVersion="onVersion" />
+            <WorkflowVersionSelector
+                v-if="version !== null && version !== undefined"
+                :version="version"
+                :versions="versions"
+                @onVersion="onVersion" />
         </div>
         <div v-if="hasParameters" id="workflow-parameters-area" class="mt-2">
             <b>Parameters</b>