Prevent duplicate or overlapping blocks

[Schamper]

(DIS-1134)

[codecov]

Codecov Report

Merging #7 (f8d4e94) into main (853e60c) will increase coverage by 20.50%.
The diff coverage is 77.11%.

❗ Current head f8d4e94 differs from pull request most recent head 2c3a106. Consider uploading reports for the commit 2c3a106 to get more accurate results

@@             Coverage Diff             @@
##             main       #7       +/-   ##
===========================================
+ Coverage   44.73%   65.24%   +20.50%     
===========================================
  Files          10       10               
  Lines         836      892       +56     
===========================================
+ Hits          374      582      +208     
+ Misses        462      310      -152     

Flag	Coverage Δ
unittests	65.24% <77.11%> (+20.50%)	⬆️

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Impacted Files	Coverage Δ
dissect/evidence/tools/asdf/dd.py	0.00% <0.00%> (ø)
dissect/evidence/tools/asdf/verify.py	0.00% <0.00%> (ø)
dissect/evidence/asdf/asdf.py	90.00% <98.38%> (+63.42%)	⬆️
dissect/evidence/asdf/__init__.py	100.00% <100.00%> (ø)
dissect/evidence/asdf/streams.py	96.36% <100.00%> (+45.08%)	⬆️

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