Improve variable interpolation

[mattdibi]

Closes #822, #148

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.15%. Comparing base (92fee05) to head (8d08c3c).
Report is 182 commits behind head on master.

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Additional details and impacted files

@@             Coverage Diff              @@
##             master     #823      +/-   ##
============================================
+ Coverage     71.03%   74.15%   +3.11%     
- Complexity       96      119      +23     
============================================
  Files             7        8       +1     
  Lines           580      619      +39     
  Branches         75       82       +7     
============================================
+ Hits            412      459      +47     
+ Misses          121      107      -14     
- Partials         47       53       +6     

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[tcurdt]

Thanks for your contribution!

[mattdibi]

@tcurdt thank you for your support during the development of this PR. Much appreciated 🙏

[mattdibi]

One last question: @tcurdt when can we expect the next release?

[tcurdt]

@mattdibi I'll be honest:

Since there hasn't been further fixes or changes it's currently not super high on my todo. Last release was in Jan.
Do you have any particular due dates?

[mattdibi]

@tcurdt I appreciate the honesty.

Do you have any particular due dates?

Not really. We have a workaround for now. I was just curious :)
Again, thank you for your feedback 🙏