php7-pecl-varnish: unresolved dependency

Stumbled onto this randomly:

ERROR: unable to select packages:
  so:libvarnishapi.so.2 (no such package):
    required by: php7-pecl-varnish-1.2.6-r0[so:libvarnishapi.so.2]

First time I've ever seen a missing dependency in Alpine :o

Happens on up to date Alpine Edge. I actually don't need the package for anything, but thought I should report it.