[FS#1040] Can't set WiFi HT mode per-SSID

[LEDE Bugs]

The following task has a new comment added:

FS#1040 - Can't set WiFi HT mode per-SSID
User who did this - Mathias Kresin (mkresin)

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Are you sure that it ever worked correctly with OpenWrt AA and wasn't as easy that the last set value was applied?

Reading the hostapd documentation it rather looks like a per wireless interface setting instead  of a per BSSID setting.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1040#comment3553