Notifications get instantly dismissed

I recently started using mako and noticed that sometimes notifications get almost instantly dismissed. They do not show up with `makoctl list` but in `makoctl history`. I was suspecting them to have their own timeout but that should be ignored in my configuration:

```
actions=true
anchor=top-right
background-color=#1a1a1a
border-color=#444444
default-timeout=0
font=Fira Mono 12
icons=false
ignore-timeout=1
markup=true
max-visible=-1

[mode=do-not-disturb]
invisible=1
```

So far I noticed that behavior with notifications from Rocket.Chat.

This might be related to #467.