Disposals do not impact number of available preparations

[lexiclevenger]

Describe the bug
After performing a disposal for a preparation object, the Current Count of preparations decreases, but the number of available preparations stays the same and allows for the preparations from the disposal to be loaned or gifted. Loaning or gifting these preparations will decrease the Current Count again and result in the count being negative.

To Reproduce
Steps to reproduce the behavior:

1. Create a new Disposal
2. Add all available preparations for a collection object, save.
3. Go to the collection object form and see that the Current Count is 0.
4. Create a loan.
5. See that the preparations added to the Disposal are available, add preparations, save.
6. Go to the collection object form and see that the Current Count is a negative number.

Expected behavior
Disposals should decrease the number of available preparations for a collection object.

Screenshots

Specify 7 System Information - 2024-04-25T19_26_12.430Z.txt

Please, also fill out the following information manually:

• OS: Mac
• Browser: Chrome
• Specify 7 Version: edge, 7.9.3.1
• Database Name: KUPaleoBot_8_31_2023
• Collection name: Paleobotany
• User Name: sppaleobotadmin