Do not exit early in repo listing

[linsword13]

Right now when it sees a particular object type has 0 repo, it returns. This is usually OK since we have built-in repos for each object type, but can be problematic when querying with specific scope (--scope).

Incidentally, remove an unused chunk of comment.

[gemini-code-assist]

Code Review

This pull request fixes an issue in the repo list command where the command would prematurely return instead of continuing the loop when a repository type had no repositories in scope. This allows other repository types to be listed correctly. Additionally, dead commented-out code for is_virtual was removed from repository.py, and a new test was added to verify listing repositories when no applications are in scope. No review comments were provided, so there is no feedback to address.

[ramble-pr-bot]

Ramble Performance Test Metrics

Results produced with commit: b9d9de4

Test Name	Outcome	Duration (s)	Most Recent Run (s)	Last 5 Avg (s)
test_analyze_large_file	passed	2.0649	2.0909 (185471f)	2.0958
test_large_template_expansion	passed	1.2067	1.1892 (185471f)	1.3997
test_many_experiments	passed	24.5007	23.2019 (185471f)	24.5554
test_many_objects_defaults	passed	13.4725	13.1219 (185471f)	13.6278
test_matrix_filter_perf	passed	1.0769	1.0546 (185471f)	1.1271

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.03%. Comparing base (185471f) to head (b9d9de4).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1734   +/-   ##
========================================
  Coverage    94.02%   94.03%           
========================================
  Files          367      367           
  Lines        36933    36939    +6     
========================================
+ Hits         34728    34735    +7     
+ Misses        2205     2204    -1     

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