fixup! feat: add form locking mechanism

Signed-off-by: Christian Hartmann <chris-hartmann@gmx.de>

Author: Chartman123

openapi.json

@@ -102,6 +102,7 @@
                     "expires",
                     "fileFormat",
                     "fileId",
+                    "filePath",
                     "isAnonymous",
                     "lastUpdated",
                     "submitMultiple",
@@ -154,7 +155,8 @@
                         "nullable": true
                     },
                     "filePath": {
-                        "type": "string"
+                        "type": "string",
+                        "nullable": true
                     },
                     "isAnonymous": {
                         "type": "boolean"