test(instance): server create with snapshot and no image

[Codelax]

Add test for #3787

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.32%. Comparing base (5bf53e0) to head (657e454).
Report is 147 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (5bf53e0) and HEAD (657e454). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (5bf53e0)	HEAD (657e454)
	2	1

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3962      +/-   ##
==========================================
- Coverage   75.45%   69.32%   -6.13%     
==========================================
  Files         202      291      +89     
  Lines       44323    55168   +10845     
==========================================
+ Hits        33444    38247    +4803     
- Misses       9653    15354    +5701     
- Partials     1226     1567     +341     

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