Preview: Can't delete the first multi-tail arrow if the first is added as a new project and second by any another option

[ivanmaslow]

Steps to Reproduce

1. Open .ket file with a multi-tail arrow in Notepad and copy .ket Json:
   two-tail-arrow.zip
2. Click on Open... in the Ketcher
3. Click on PASTE FROM CLIPBOARD
4. Paste copied Json to Open Structure
5. Click "Open as a New Project" - the first multi-tail arrow is added to the center of Canvas
6. Paste copied Json to Canvas to add the second multi-tail arrow (you can add it by button on left toolbar or open from file)
   
7. Select both multi-tail arrows using the selection tool and click on Erase (or Delete) or click on Clear Canvas

Actual behavior
Only the second arrow is deleted. The first arrow which is opened as a New Project isn't deleted

Expected behavior
Both arrows are deleted

Environment Details

• Nightly environment /5104-save-load-multitail-arrow/
• OS: Windows 11 Enterprise
• Browser: Chrome, Version 127.0.6533.120 (Official Build) (64-bit)

Additional context

• Issue is detected during exploratory testing of Select and move Multi-tail arrow #4898

[ivanmaslow]

The issue is fixed and verified on nightly environment (5057-hover-selection) - both arrows can be deleted.

[split-ends]

Successfully verified, both arrows can be deleted.

Environment details:
Ketcher Version: 2.25.0-rc.1 Build at 2024-09-03; 15:31:03
Indigo Version: 1.24.0-rc.1.0-gb8f099851-wasm32-wasm-clang-19.0.0
Chrome Version: Version 128.0.6613.113 (Official Build) (64-bit)
Windows 11 Enterprise