Bug#908328: qtbase5-doc-html: Class docs are missing in 5.11.1+dfsg-7

[Steve Cotton <steve@s.cotton.clara.co.uk>]

Package: qtbase5-doc-html
Version: 5.11.1+dfsg-7
Severity: normal
Justification: grave for qtbase5-doc-html itself, but normal for src:qtbase-opensource-src

All of the generated-for-classes documentation such as qobject.html and
qvariant.html is missing from qtbase5-doc-html_5.11.1+dfsg-7_all.deb.

These docs were in qtbase5-doc-html_5.11.1+dfsg-6_all.deb, and there's a corresponding drop
in the size of the .deb from 22MB to 14MB.  The .deb files for qtbase5-doc also
show a corresponding size change, from 27MB to 16MB.

I'm seeing confusing info from other tools. These files are still included in the list of
files reported by apt-file and https://packages.debian.org/sid/all/qtbase5-doc-html/filelist ,
even though https://packages.debian.org also shows the corresponding size drop.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386, arm64

Kernel: Linux 4.17.0-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

-- no debconf information