Call MultipartForm.RemoveAll when request finishes (#19606)

routers/api/v1/misc/markdown_test.go

@@ -37,6 +37,8 @@ func createContext(req *http.Request) (*context.Context, *httptest.ResponseRecor
 		Render: rnd,
 		Data:   make(map[string]interface{}),
 	}
+	defer c.Close()
+
 	return c, resp
 }
 

routers/install/install.go

@@ -79,6 +79,8 @@ func Init(next http.Handler) http.Handler {
 				"PasswordHashAlgorithms": user_model.AvailableHashAlgorithms,
 			},
 		}
+		defer ctx.Close()
+
 		ctx.Req = context.WithContext(req, &ctx)
 		next.ServeHTTP(resp, ctx.Req)
 	})