does Jekyll sign an Xcode bundle?

[appsird]

Since Xcode 9 I now have to manually sign the created help bundle in my Xcode app, though do not believe this was required prior with my Swift3 Xcode 8 build.

Apple support states:

It appears you're using Jekyll to build the help bundle. The next step is to see if Jekyll is either signing the bundle directly or triggering Xcode to do the signing.

Any thoughts here welcomed. For now, looks like I need to manually sign the project whereas could use auto signing prior.