fix: restore tempfile created 0 B

[rsommerard]

Type of PR (feature, enhancement, bug fix, etc.)

Description

File coming from external server like FTP are not well restored due to this error: Restore tempfile created 0 B

I don't know if the fix is the good way to do it.

Fixes #463

[codecov[bot]]

Codecov Report

Merging #464 (76cd4ec) into master (af443c5) will increase coverage by 0.04%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #464      +/-   ##
==========================================
+ Coverage   92.15%   92.20%   +0.04%     
==========================================
  Files          16       16              
  Lines         676      680       +4     
  Branches      141      142       +1     
==========================================
+ Hits          623      627       +4     
  Misses         30       30              
  Partials       23       23              

Impacted Files	Coverage Δ
dbbackup/management/commands/dbrestore.py	96.29% <100.00%> (+0.29%)	:arrow_up:

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[Archmonger]

Hey @rsommerard

Can you please add tests for this edge case?

[Archmonger]

Marking as draft until tests are added.