Fix data propagation for collections in xargs

[devth]

No description provided.

[codecov]

Codecov Report

Merging #112 into master will decrease coverage by 0.08%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master     #112      +/-   ##
==========================================
- Coverage   43.73%   43.64%   -0.09%     
==========================================
  Files          90       90              
  Lines        3583     3590       +7     
  Branches      166      166              
==========================================
  Hits         1567     1567              
- Misses       1850     1857       +7     
  Partials      166      166

Impacted Files	Coverage Δ
src/yetibot/core/commands/collections.clj	27.16% <0%> (-0.6%)	⬇️
src/yetibot/core/commands/render.clj	32.25% <0%> (ø)	⬆️

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