fixes error thrown while loading multiple models

[jagadeeshi2i]

Description

Fixes validation error thrown while loading multiple mar files.

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Fixes #(issue)

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Feature/Issue validation/testing

Please describe the Unit or Integration tests that you ran to verify your changes and relevant result summary. Provide instructions so it can be reproduced.
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• Test A
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• Test B
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Checklist:

• Did you have fun?
• Have you added tests that prove your fix is effective or that this feature works?
• Has code been commented, particularly in hard-to-understand areas?
• Have you made corresponding changes to the documentation?

[codecov]

Codecov Report

Merging #2235 (fe76966) into master (9fa08a3) will decrease coverage by 0.12%.
The diff coverage is n/a.

❗ Current head fe76966 differs from pull request most recent head 719d5d1. Consider uploading reports for the commit 719d5d1 to get more accurate results

@@            Coverage Diff             @@
##           master    #2235      +/-   ##
==========================================
- Coverage   71.47%   71.35%   -0.12%     
==========================================
  Files          73       73              
  Lines        3341     3341              
  Branches       57       57              
==========================================
- Hits         2388     2384       -4     
- Misses        950      954       +4     
  Partials        3        3              

see 2 files with indirect coverage changes

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[yuzisun]

Can we make sure we have tests for this? this is breaking a lot of users.