bug symfony#3148 [Autocomplete] Untranslated no_results label when options_as_html is set (maxperei)

This PR was merged into the 2.x branch.

Discussion
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[Autocomplete] Untranslated `no_results` label when `options_as_html` is set

| Q              | A
| -------------- | ---
| Bug fix?       | yes
| New feature?   | no
| Deprecations?  | no
| Documentation? | no
| Issues         | Fix symfony#2477
| License        | MIT

during `createAutocompleteWithHtmlContents()` it seems that a `commonConfig` is overridden by a new one but some nested properties are lost during the `#mergeConfigs()` and especially `no_results` that fallbacks to the untranslated tom-select default one

Commits
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dba3f5f fix(render): [autocomplete] missing common config properties during merge (such as `no_results`) for `options_as_html` inputs

Author: Kocal

src/Autocomplete/assets/dist/controller.js

@@ -306,6 +306,7 @@ createAutocompleteWithHtmlContents_fn = function() {
       };
     },
     render: {
+      ...commonConfig.render,
       item: (item) => `<div>${item[labelField]}</div>`,
       option: (item) => `<div>${item[labelField]}</div>`
     }

src/Autocomplete/assets/src/controller.ts

@@ -239,6 +239,7 @@ export default class extends Controller {
                 };
             },
             render: {
+                ...commonConfig.render,
                 item: (item: any) => `<div>${item[labelField]}</div>`,
                 option: (item: any) => `<div>${item[labelField]}</div>`,
             },