The New Developers Working Group worked on this one as well as the related AngularJS one:
https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/mccanna/lp1980409_allow_empty_call_number_label
(Note that this requires the top two commits on the branch - the first by Kyle Huckins and the second under my name, but worked on by the New Devs Group.)
The New Developers Working Group worked on this one as well as the related AngularJS one:
https:/ /git.evergreen- ils.org/ ?p=working/ Evergreen. git;a=shortlog; h=refs/ heads/user/ mccanna/ lp1980409_ allow_empty_ call_number_ label
(Note that this requires the top two commits on the branch - the first by Kyle Huckins and the second under my name, but worked on by the New Devs Group.)