Fixed regression intoruduced by previous commit (3f95ae2)
Fixed regression intoruduced by previous commit (3f95ae2)

Originally reproduced on server/bulk-sale modal form: in case saving fails, `loadModels()` call
tries to get IDs from request by checking `id` and `selection` params. Both of them are empty,
so exception is thrown.

This commit fixes regression by falling back to simpler behavior in case of exception

hiqdev/hipanel-core,hiqdev/hipanel-core,hiqdev/hipanel-core,hiqdev/hipanel-core