Fast Merge bug fixes

[farizrahman4u]

🚀 🚀 Pull Request

Impact

• Bug fix (non-breaking change which fixes expected existing functionality)
• Enhancement/New feature (adds functionality without impacting existing logic)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

Things to be aware of

Things to worry about

Additional Context

Some bug fixes for fast merge.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

75.0% Coverage
0.0% Duplication

[codecov]

Codecov Report

Patch coverage: 95.23% and project coverage change: -0.02% ⚠️

Comparison is base (48e9073) 84.93% compared to head (407f456) 84.91%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2497      +/-   ##
==========================================
- Coverage   84.93%   84.91%   -0.02%     
==========================================
  Files         328      328              
  Lines       38800    38818      +18     
==========================================
+ Hits        32955    32963       +8     
- Misses       5845     5855      +10     

Flag	Coverage Δ
unittests	84.91% <95.23%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
deeplake/util/merge.py	93.93% <94.11%> (-1.13%)	⬇️
deeplake/core/chunk_engine.py	93.28% <100.00%> (-0.06%)	⬇️
deeplake/core/dataset/dataset.py	91.74% <100.00%> (+<0.01%)	⬆️

... and 25 files with indirect coverage changes

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