Fix: isar tags json storage

[nogringo]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.44%. Comparing base (6a329d3) to head (3230286).
⚠️ Report is 15 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #369      +/-   ##
==========================================
+ Coverage   72.38%   72.44%   +0.05%     
==========================================
  Files         144      144              
  Lines        5545     5545              
==========================================
+ Hits         4014     4017       +3     
+ Misses       1531     1528       -3     

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