Minicart height calculated incorrectly when child items contain margins

[gwharton]

Preconditions (*)

1. magento 2.3-develop

Steps to reproduce (*)

1. Deploy 2.3-develop
2. Create Test product and add to cart
3. View minicart
4. Open browser development tools
5. Locate the line
   <li class="item product product-item" data-role="product-item">
6. In the style explorer locate the css item
   .minicart-items .product-item
7. Add the style
   padding-bottom: 100px !important;
8. Close and reopen minicart to force reevaluation of height
9. Notice that the minicart height is correctly calculated and there is a padding of 100px in the minicart.
   
10. Remove the style
    padding-bottom: 100px !important;
11. Add the style
    margin-bottom: 100px !important;
12. Close and reopen minicart to force reevaluation of height

Expected result (*)

1. minicart height is correctly calculated.

Actual result (*)

1. minicart height is not correctly calculated.
2. Scroll bar appears in minicart
   

When padding is used in the product-item list item the minicart calculated height correctly, but does not when margins are used.

[m2-assistant]

Hi @gwharton. Thank you for your report.
To help us process this issue please make sure that you provided the following information:

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Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:

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@gwharton do you confirm that you were able to reproduce the issue on vanilla Magento instance following steps to reproduce?

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[gwharton]

@magento give me 2.3-develop instance

[magento-engcom-team]

Hi @gwharton. Thank you for your request. I'm working on Magento 2.3-develop instance for you

[magento-engcom-team]

Hi @gwharton, here is your Magento instance.
Admin access: https://i-24441-2-3-develop.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[gwharton]

Confirmed produced on test instance.

[m2-assistant]

Hi @krishprakash. Thank you for working on this issue.
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[magento-engcom-team]

✅ Confirmed by @krishprakash
Thank you for verifying the issue. Based on the provided information internal tickets MC-19847 were created

Issue Available: @krishprakash, You will be automatically unassigned. Contributors/Maintainers can claim this issue to continue. To reclaim and continue work, reassign the ticket to yourself.