`dotnet watch` seems to have a chance of spawning multiple instances when reloading or starting on MacOS

`dotnet watch` seems to have a chance of spawning multiple instances when reloading or starting on MacOS

### Describe the bug
A clear and concise description of what the bug is.

`dotnet watch` seems to have a chance of spawning multiple instances of the same project when applying code changes or starting the project for the first time on MacOS.

### To Reproduce

[A Github repo containing an FNA Project where the bug has occurred](https://github.com/NausetJF/untitled2)

### Exceptions (if any)

- So far, I have only experienced this bug with FNA.
- This seems to be a Mac issue, as @kg tested the project with Windows and she couldn't reproduce the bug.

### Further technical details
- Include the output of `dotnet --info`
- The IDE (VS / VS Code/ VS4Mac) you're running on, and its Version

```
nausetjf@NausetBook ~ % dotnet --info
.NET SDK:
Version: 9.0.301
Commit: a596cd22e2
Workload version: 9.0.300-manifests.9bcbba73
MSBuild version: 17.14.5+edd3bbf37

Runtime Environment:
OS Name: Mac OS X
OS Version: 15.1
OS Platform: Darwin
RID: osx-arm64
Base Path: /usr/local/share/dotnet/sdk/9.0.301/

.NET workloads installed:
There are no installed workloads to display.
Configured to use loose manifests when installing new manifests.

Host:
Version: 9.0.6
Architecture: arm64
Commit: 3875b54e7b

.NET SDKs installed:
8.0.402 [/usr/local/share/dotnet/sdk]
8.0.409 [/usr/local/share/dotnet/sdk]
8.0.411 [/usr/local/share/dotnet/sdk]
9.0.301 [/usr/local/share/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 8.0.8 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.16 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.17 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.6 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 8.0.8 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.16 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.17 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.6 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download
```

- IDE

Visual Studio Code
Version: 1.101.2