[BUGFIX] Re-init FormEngine always after memorizing record

TCA fields using the 'placeholder' functionality are not
initialized in inline 'localize/synchronize' scenarios.

tx_styleguide_inline_1n -> inline_1 -> input_3 has been
added to show this.

Solution is to call the required FormEngine "re-init" in
JavaScript at a different point - not only when new inline
children are added, but also when synchronizing with
default language.

Resolves: #93792
Releases: master, 10.4
Change-Id: Ib10826ee9bc4c305436c2474f2bb20b2d367d426
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68530
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>

Build/Sources/TypeScript/backend/Resources/Public/TypeScript/FormEngine/Container/InlineControlContainer.ts

@@ -407,10 +407,6 @@ class InlineControlContainer {
           typeof afterUid !== 'undefined' ? afterUid : null,
           typeof response.compilerInput.childChildUid !== 'undefined' ? response.compilerInput.childChildUid : null,
         );
-
-        FormEngine.reinitialize();
-        FormEngineValidation.initializeInputFields();
-        FormEngineValidation.validate(this.container);
       }
     });
   }
@@ -677,6 +673,10 @@ class InlineControlContainer {
       this.toggleContainerControls(false);
     }
 
+    FormEngine.reinitialize();
+    FormEngineValidation.initializeInputFields();
+    FormEngineValidation.validate(this.container);
+
     TBE_EDITOR.fieldChanged_fName((<HTMLInputElement>formField).name, formField);
   }