Skipping inaccessible sources

[CurtisAMU]

I have configured multiple sources. One is only accessible through a VPN, which I do not always connect to (company/private use).
The situation is similar to specifying a wrong source like in the example here:

C:\windows\system32>choco source list
Chocolatey v2.2.2
bogus - https://github.com/ | Priority 0|Bypass Proxy - False|Self-Service - False|Admin Only - False.
chocolatey - https://community.chocolatey.org/api/v2/ | Priority 1|Bypass Proxy - False|Self-Service - False|Admin Only - False.

The order of the sources and the priorities do not matter, it seems.
With the additional source "bogus" configured, chocolatey does not list any packages at all:

C:\windows\system32>choco search cmake
Chocolatey v2.2.2
Failed to fetch results from V2 feed at 'https://github.com/Packages()?$filter=((((Id%20ne%20null)%20and%20substringof('cmake',tolower(Id)))%20or%20((Description%20ne%20null)%20and%20substringof('cmake',tolower(Description))))%20or%20((Tags%20ne%20null)%20and%20substringof('%20cmake%20',tolower(Tags))))%20and%20IsLatestVersion&$orderby=Id&$skip=0&$top=30&semVerLevel=2.0.0' with following message : Der Antwortstatuscode gibt keinen Erfolg an: 404 (Not Found).

I don't mind the error message, but is there a way to have chocolatey try the other configured sources. One might work.