Unable to sign with blank mode

[abeverley]

Just a quick one whilst I remember (I've not investigated further). I tried using the main branch from this repo, and I found that when the Mode is blank (i.e. automatic), that openarc aborts with a segfault about the selector being null (even though it is set in the config). I'm not sure whether this is a new bug in this branch, or whether it is an old bug and the fix hasn't been merged. It works as expected on the upstream develop branch.

[flowerysong]

This is a bug introduced by trusteddomainproject/OpenARC#159, it should be fixed in 20df719