Allow selecting a template that has worker runs without model versions

src/components/Process/TemplateSelection.vue

@@ -138,6 +138,7 @@ export default {
     applyTitle () {
       if (this.canApply) return 'Apply a template to this process'
       if (this.hasUnavailableWorkerVersions) return 'This template cannot be applied because it uses one or more worker versions that are not in an Available state'
+      if (this.hasUnavailableModelVersions) return 'This template cannot be applied because it uses one or more model versions that are not in an Available state'
       if (!this.selectedTemplateId) return 'Please select a template to apply'
       return null
     },
@@ -162,7 +163,7 @@ export default {
     hasUnavailableModelVersions () {
       if (this.selectedTemplateId === null) return false
       const runs = ensureArray(this.processWorkerRuns[this.selectedTemplateId])
-      return runs.some(run => run.model_version?.state !== 'available')
+      return runs.some(run => run.model_version && run.model_version.state !== 'available')
     }
   },
   methods: {