[BUG] `prereq`'d state with `onlyif`/`unless` + `fun`: onlyif requisite ignored

Description
A state that is prerequired and itself has an onlyif (or unless) requisite that calls an execution module will run regardless of outcome of the onlyif evaluation.

Setup

• on-prem machine
• VM (Virtualbox, KVM, etc. please specify)
• VM running on a cloud service, please be explicit and add details
• container (Kubernetes, Docker, containerd, etc. please specify)
• or a combination, please be explicit
• jails if it is FreeBSD
• classic packaging
• onedir packaging
• used bootstrap to install

Steps to Reproduce the behavior

Copy stuff:
  file.copy:
    - name: /tmp/aa
    - source: /tmp/a
    - onlyif:
      - fun: file.file_exists
        path: /tmp/a

Do sth else:
  cmd.run:
    - name: true
    - prereq:
      - Copy stuff

Expected behavior

local:
----------
          ID: Do sth else
    Function: cmd.run
      Result: True
     Comment: No changes detected
     Started: 06:41:33.485261
    Duration: 0.007 ms
     Changes:
----------
          ID: Copy stuff
    Function: file.copy
        Name: /tmp/aa
      Result: True
     Comment: onlyif condition is false
     Started: 06:41:33.485360
    Duration: 8.103 ms
     Changes:

Summary for local
------------
Succeeded: 2
Failed:    0
------------
Total states run:     2
Total run time:   8.110 ms

Screenshots

[WARNING ] no `fun` argument in onlyif: OrderedDict([('path', '/tmp/a')])
[ERROR   ] Source file "/tmp/a" is not present
local:
----------
          ID: Do sth else
    Function: cmd.run
      Result: True
     Comment: No changes detected
     Started: 06:37:15.121723
    Duration: 0.008 ms
     Changes:
----------
          ID: Copy stuff
    Function: file.copy
        Name: /tmp/aa
      Result: False
     Comment: Source file "/tmp/a" is not present
     Started: 06:37:15.121817
    Duration: 80.259 ms
     Changes:

Summary for local
------------
Succeeded: 1
Failed:    1
------------
Total states run:     2
Total run time:  80.267 ms

Versions Report

Salt Version:
          Salt: 3006.3

Python Version:
        Python: 3.10.13 (main, Sep  6 2023, 02:11:27) [GCC 11.2.0]

Dependency Versions:
          cffi: 1.14.6
      cherrypy: unknown
      dateutil: 2.8.1
     docker-py: Not Installed
         gitdb: Not Installed
     gitpython: Not Installed
        Jinja2: 3.1.2
       libgit2: Not Installed
  looseversion: 1.0.2
      M2Crypto: Not Installed
          Mako: Not Installed
       msgpack: 1.0.2
  msgpack-pure: Not Installed
  mysql-python: Not Installed
     packaging: 22.0
     pycparser: 2.21
      pycrypto: Not Installed
  pycryptodome: 3.9.8
        pygit2: Not Installed
  python-gnupg: 0.4.8
        PyYAML: 6.0.1
         PyZMQ: 23.2.0
        relenv: 0.13.10
         smmap: Not Installed
       timelib: 0.2.4
       Tornado: 4.5.3
           ZMQ: 4.3.4

System Versions:
          dist: rocky 9.2 Blue Onyx
        locale: utf-8
       machine: x86_64
       release: 5.14.0-284.18.1.el9_2.x86_64
        system: Linux
       version: Rocky Linux 9.2 Blue Onyx

Additional context
The prereq results in the state to be run twice. During the first run, fun (and args) is popped from the passed-in lowstate chunk and is thus unavailable for the second (non-test) run:

https://github.com/saltstack/salt/blob/fb717a8d4bea3d48c596ae8dda313b7639c23dc6/salt/state.py#L1028-L1034

Start in salt/state.py around lines 1028-1034 and trace how prereq states are evaluated twice. Reproduce the YAML example with an onlyif fun requisite, then inspect the lowstate chunk across the test and non-test runs. Done means the onlyif result is honored and fun and args remain available when the state executes normally.