Make sure file tree is not cached while submission is not completed

[cccs-sgaron]

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[codecov-commenter]

Codecov Report

Merging #274 (6d6492e) into master (0a97d60) will increase coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #274      +/-   ##
==========================================
+ Coverage   67.12%   67.14%   +0.01%     
==========================================
  Files         119      119              
  Lines       10419    10419              
==========================================
+ Hits         6994     6996       +2     
+ Misses       3425     3423       -2     

Impacted Files	Coverage Δ
assemblyline/datastore/helper.py	32.39% <0.00%> (ø)
assemblyline/odm/randomizer.py	96.05% <0.00%> (+0.87%)	⬆️

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