Do not modify original image in in-place resizing

[pxl-th]

Fixes #150 (comment).

[codecov]

Codecov Report

Merging #151 (c65c7d1) into master (6f2a65a) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #151   +/-   ##
=======================================
  Coverage   90.27%   90.27%           
=======================================
  Files           8        8           
  Lines         216      216           
=======================================
  Hits          195      195           
  Misses         21       21           

Impacted Files	Coverage Δ
src/resizing.jl	100.00% <100.00%> (ø)

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[johnnychen94]

Thank you all for catching and fixing this!

There's a CHANGELOG.md used to track note-worthy changes. You can optionally add a bug-fix entry there and then I think we can release v0.9.3.

@pxl-th since you get the superpower already, I'll leave it to you to merge and release. The commit history is kind of random so let's squash and merge.

[pxl-th]

The commit history is kind of random so let's squash and merge.

Yeah, forgot to pull changes before starting to work on this :)