Hello and thanks for the work thus far!

In our collective, we use the same pad for our weekly meeting. It's quite handy to have the same URL. After the meeting is over, the moderator is tasked with copying the minutes to the website and resetting the minutes template. I thought `import-as` could be used to help automate this process by uploading the template to the existing pad.

Initial note creation :+1:

```
$ codimd import newnote
Found. Redirecting to https://codi.kanthaus.online/zCaOffwOSgGQRRpnaeJM0A
```

First template import :+1:

```
$ codimd import-as zCaOffwOSgGQRRpnaeJM0A exampleTemplate.md
Found. Redirecting to https://codi.kanthaus.online/zCaOffwOSgGQRRpnaeJM0A
```
Second template import :-1:

```
$ codimd import-as zCaOffwOSgGQRRpnaeJM0A exampleTemplate.md

...

500 Internal Error wtf.

I get that this could be an issue with how we set our instance up (and I'll ask our 'sysadmins') but if it could be something with codimd(-cli) I thought I'd let you know.