Import endpoints : replace _ by space

src/Controller/ImportController.php

@@ -126,7 +126,7 @@ private function checkAuth(Request $request, array $allowedCampaigns, bool $forc
             ], Response::HTTP_BAD_REQUEST);
         }
 
-        $this->version = $matchesVersion[1];
+        $this->version = \str_replace('_', ' ', $matchesVersion[1]);
         if (strlen($this->version) < 1) {
             return new JsonResponse([
                 'message' => sprintf(