Avoid duplicate Metal command buffer encodings during ISQ

[EricLBuehler]

It seems like the Metal device can only be created once per ordinal. It needs investigation, but this PR is a fix.

[github-actions]

Code Metrics Report

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 Language            Files        Lines         Code     Comments       Blanks
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 Dockerfile              1           34           25            0            9
 Happy                   1          442          369            0           73
 JSON                   12          105          104            0            1
 Python                 52         2280         1940           68          272
 TOML                   20          630          564            2           64
 YAML                    2           21           19            2            0
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 Jupyter Notebooks       4            0            0            0            0
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 (Total)                            273          201           32           40
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 Markdown               38         2803            0         2132          671
 |- BASH                 6          103          100            0            3
 |- JSON                 1           12           12            0            0
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 (Total)                           3407          531         2132          744
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 Rust                  269        79450        71325         1688         6437
 |- Markdown           131         1357           25         1237           95
 (Total)                          80807        71350         2925         6532
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 Total                 402        85800        74374         3892         7534
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