Salt Grain Targeting failing at properly filtering objects #236

Good afternoon since upgrading to 3008.1 we have noticed a missfire in grain targetings of minions.

namely salt -G os_family:Debian will target Debian and Windows minions attached to the same master and vice versa, i have tested with multiple different grains (Default like the os and os_family and osfinger as well as custom ones we set by ourselves, it seems that the filtering is just completely broken this is how the responses look like:

~$ salt -G os_family:Debian test.ping
vm1.some.domain.com:
True
vm2.some.domain.com:
True
vm3.some.domain.com:
True
vm4.some.domain.com:
True
vm5.some.domain.com:
True
vm6.some.domain.com:
True
Machines below are all Windows
vm7.some.domain.com:
Minion did not return. [No response]
The minions may not have all finished running and any remaining minions will return upon completion. To look up the return data for this job later, run the following command:

salt-run jobs.lookup_jid 20260708131754534267

vm8.some.domain.com:
Minion did not return. [No response]
The minions may not have all finished running and any remaining minions will return upon completion. To look up the return data for this job later, run the following command:

salt-run jobs.lookup_jid 20260708131754534267

vm9.some.domain.com:
Minion did not return. [No response]
The minions may not have all finished running and any remaining minions will return upon completion. To look up the return data for this job later, run the following command: