RuntimeError: maximum recursion depth exceeded

### Step 1: Please describe your environment

* ZeroNet version: 0.6.2 (3323)
* Operating system: Linux, Ubuntu 16.04
* Web browser: Chrome
* Tor status: disabled
* Opened port: no
* Special configuration: ____

### Step 2: Describe the problem:
Random error in a test run. ZeroNet notification "RuntimeError: maximum recursion depth exceeded"

#### Steps to reproduce:
Minor issue. Error only seen once. But maybe you can use log for something. I guess it was a fileGet request that triggered the error but I am not sure.

[issue-1306.log](https://github.com/HelloZeroNet/ZeroNet/files/1763981/issue-1306.log)