[PATCH] skip original Content-Transfer-Encoding for mbox

[Daniel Axtens]

In the commit 01b9cbb9 all original mail headers are copied into the
resulted mbox file. This means that some headers are going to be
present twice in the generated mbox. That is fine unless the original
email arrived in base64 encoding.

Apparently git relies on the latest Content-Transfer-Encoding key. And
since downloaded patch's actual encoding is '7bit', git fails to apply
it with the message 'Patch is empty'.

Since patchwork adds a proper 'Content-Transfer-Encoding' anyways,
let's skip this field while copying headers from the original mail

Signed-off-by: Yuri Volchkov <yuri.volchkov at gmail.com>
---

Daniel Axtens writes: Yuri sent me an email saying his message didn't
reach the list, so I'm forwarding this on his behalf. Veronika: you
authored 01b9cbb9 so perhaps you could take a look to see if this is the
best way. My guess is that this is probably right but you might have
other thoughts.

---
 patchwork/views/utils.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/patchwork/views/utils.py b/patchwork/views/utils.py
index f5ff43c..2357ab8 100644
--- a/patchwork/views/utils.py
+++ b/patchwork/views/utils.py
@@ -99,6 +99,8 @@ def _submission_to_mbox(submission):
 
     orig_headers = HeaderParser().parsestr(str(submission.headers))
     for key, val in orig_headers.items():
+        if key == 'Content-Transfer-Encoding':
+            continue
         mail[key] = val
 
     if 'Date' not in mail:
-- 
2.17.0