Fixed double compression of one message

[alex268]

Fixes #501

[codecov-commenter]

Codecov Report

❌ Patch coverage is 66.66667% with 27 lines in your changes missing coverage. Please review.
✅ Project coverage is 59.35%. Comparing base (4822d6e) to head (2cb5c87).
⚠️ Report is 116 commits behind head on master.

Files with missing lines	Patch %	Lines
...ain/java/tech/ydb/topic/write/impl/WriterImpl.java	60.60%	8 Missing and 5 partials ⚠️
...ava/tech/ydb/topic/write/impl/EnqueuedMessage.java	75.00%	8 Missing and 2 partials ⚠️
...ic/src/main/java/tech/ydb/topic/write/Message.java	0.00%	1 Missing and 1 partial ⚠️
.../java/tech/ydb/topic/write/impl/MessageSender.java	66.66%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #504      +/-   ##
============================================
+ Coverage     59.31%   59.35%   +0.04%     
+ Complexity     2223     2219       -4     
============================================
  Files           327      327              
  Lines         13449    13433      -16     
  Branches       1338     1334       -4     
============================================
- Hits           7977     7973       -4     
+ Misses         4868     4860       -8     
+ Partials        604      600       -4     

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[pnv1]

originalSize?