Mikand is correct and the configured IPs will function only on the active HA unit.
In your example, either 192.168.1.1 or 192.168.1.2 will be removed when you issue the 'sync-to-remote'. If you want both IPs to be active, you can configured both 192.168.1.1 and 1.2 on the interface and the active unit will respond to them.
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