[Bug]: state.requisite_in() evaluates same states too many times

What happened?

Considering the following sls:

foo:
  file.managed:
    - name: /tmp/foo
    - contents: foo
    - require_in:
      - /tmp/bar
      - /tmp/baz
      - /tmp/quux
bar:
  file.managed:
    - name: /tmp/bar
    - contents: bar

baz:
  file.managed:
    - name: /tmp/baz
    - contents: baz

quux:
  file.managed:
    - name: /tmp/quux
    - contents: quux

Running a state.apply (with custom debug message in check_requisite ):

[DEBUG   ] check_requisite({'state': 'file', 'name': '/tmp/bar', '__sls__': 'test.foo', '__env__': 'base', '__id__': 'bar', 'contents': 'bar', 'order': 10001, 'require': [{'file': 'foo'}, {'file': 'foo'}, {'file': 'foo'}], 'fun': 'managed'})

[DEBUG   ] check_requisite({'state': 'file', 'name': '/tmp/baz', '__sls__': 'test.foo', '__env__': 'base', '__id__': 'baz', 'contents': 'baz', 'order': 10002, 'require': [{'file': 'foo'}, {'file': 'foo'}], 'fun': 'managed'})

[DEBUG   ] check_requisite({'state': 'file', 'name': '/tmp/quux', '__sls__': 'test.foo', '__env__': 'base', '__id__': 'quux', 'contents': 'quux', 'order': 10003, 'require': [{'file': 'foo'}], 'fun': 'managed'})

The require list run once then twice then 3 times the same state 'file': 'foo', that is not what we really want.

I believe there is a bug in requisite_in() that should uniquify extend[name][_state][ind][rkey].

Type of salt install

Official deb

Major version

3006.x

What supported OS are you seeing the problem on? Can select multiple. (If bug appears on an unsupported OS, please open a GitHub Discussion instead)

debian-12, debian-11

salt --versions-report output

Salt Version:
          Salt: 3006.16
 
Python Version:
        Python: 3.10.18 (main, Sep  5 2025, 22:48:51) [GCC 11.2.0]
 
Dependency Versions:
          cffi: 1.14.6
      cherrypy: 18.10.0
  cryptography: 42.0.5
      dateutil: 2.8.1
     docker-py: Not Installed
         gitdb: Not Installed
     gitpython: Not Installed
        Jinja2: 3.1.6
       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: 24.0
     pycparser: 2.21
      pycrypto: Not Installed
  pycryptodome: 3.19.1
        pygit2: Not Installed
  python-gnupg: 0.4.8
        PyYAML: 6.0.1
         PyZMQ: 23.2.0
        relenv: 0.20.6
         smmap: Not Installed
       timelib: 0.3.0
       Tornado: 4.5.3
           ZMQ: 4.3.4
 
System Versions:
          dist: debian 13 trixie
        locale: utf-8
       machine: x86_64
       release: 6.12.48+deb13-cloud-amd64
        system: Linux
       version: Debian GNU/Linux 13 trixie

Start by reproducing the shown SLS with state.apply and inspect requisite_in() alongside the check_requisite debug output. Trace how extend[name][_state][ind][rkey] is populated, then add or update regression coverage so repeated requisite entries are deduplicated and each state is evaluated only once.