[Pkg-opt-media-team] Bug#1123485: dvd+rw-tools: Patch solving #713016 is applied twice

[Mykhailo Mishchenko]

Package: dvd+rw-tools
Version: 7.1-14+b2
Severity: minor

Dear Maintainer,

I was working on a patch for #1123113 and noticed a following warning 
from `quilt push -a`:
```
Applying patch fix_burning_bd-r_discs.patch
patching file growisofs_mmc.cpp
Hunk #1 succeeded at 814 (offset 58 lines).
```

Further investigation revealed, that `fix_burning_bd-r_discs.patch` and 
`10-blue-ray-bug713016.patch` are adding the same fix at the same line 
of the same function `bd_r_format()` in `growisofs_mmc.cpp`. 
Unfortunately, after applying one of these patches `quilt` successfully 
finds another piece of code where the second patch can be applied. It 
happened due to a merge commit `c9c1910` before the `debian/7.1-12` tag, 
where git branches with two almost identical patches were merged.

The results of this are to be judged by someone who actually understands 
this code (and I do not), but I can definitely tell that it is an accident.

I have also checked that the source code retrieved with `apt-get source 
dvd+rw-tools` also contains application of these two patches at the same 
time. I believe that it is a packaging issue separate from #713016 (even 
though related to it) and I thus am filing it as a separate bug report.

Best regards,
Mykhailo Mishchenko


-- System Information:
Debian Release: 13.2
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 
'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.57+deb13-amd64 (SMP w/16 CPU threads; PREEMPT)
Locale: LANG=uk_UA.UTF-8, LC_CTYPE=uk_UA.UTF-8 (charmap=UTF-8), LANGUAGE 
not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages dvd+rw-tools depends on:
ii genisoimage 9:1.1.11-4
ii growisofs 7.1-14+b2
ii libc6 2.41-12
ii libstdc++6 14.2.0-19

dvd+rw-tools recommends no packages.

Versions of packages dvd+rw-tools suggests:
pn cdrskin

-- no debconf information