Limited arsenal and any available attachment

[Negaiette]

Mods (complete and add to the following information):

• Arma 3: 2.16 stable
• CBA: 3.1.7 stable
• ACE3: 3.1.7 stable
• RHSAFRF: 0.5.6 stable

Description:
You can take any attachment item from limited arsenal, which not approved in it

Steps to reproduce:

1. Take any primary weapon, which compatible with attachment. (In my example I will use the scope)
2. Take any handgun weapon, which compatible with. (PP-2000 from RHSAFRF for example)
3. Put scope, which u want to take from arsenal on handun weapon or primary weapon.
4. Open arsenal and select weapon without scope.
5. Select needed scope on scope's right panel.
6. Done.

Expected behavior:
The sight should not be available for taking

Where did the issue occur?

• Dedicated / Self-Hosted Multiplayer / Singleplayer / Editor (Singleplayer) / Editor (Multiplayer) / Virtual Arsenal (Everywhere)

Additional context:
Video with bug demonstration - https://youtu.be/pD8MSDgqMZA

[LinkIsGrim]

@johnb432 duplication, unique virtual attachment is available to multiple weapons

Reproducible in 3.16.3, 3.17.0 and master

[johnb432]

At this point we have so much technical debt in the arsenal when it comes to unique items that we should rewrite the internals.

[LinkIsGrim]

Already?

[johnb432]

It feels like it. I'm not sure where to even begin with trying to fix this in a half decent manner in the current system.