Hi All,

I've been working on the ability to set keyboard layout for VNC server as per 
each individual VM. Currently the only option is to use engine-config to set 
the value globally, e.g. engine-config -s VncKeyboardLayout=en-us. After adding 
this option to database and respective entities there were raised valid 
concerns about why is this option called VncKeyboardLayout and not just 
KeyboardLayout as it applies to SPICE equally (note that also VDSM calls this 
config value as 'keyboardLayout'). 
So to achieve consistency I also renamed it in engine-config.properties and set 
KeyboardLayout.alternateKey=VncKeyboardLayout. This indeed works for setting 
(engine-config -s VncKeyboardLayout=en-us sets KeyboardLayout and engine-config 
-g KeyboardLayout works but it is unable to read the value by the alternateKey) 
engine-config -g VncKeyboardLayout fails with "no such entry with default 
version" in the method EngineConfigLogic.printAllValuesForKey as it is passing 
the user given key name directly to database which returns zero results. Setter 
methods such as EngineConfigLogic.persistValue use the entity ConfigKey 
constructed from the user given key-name which correctly constructs appropriate 
ConfigKey even when given alternateKey name. 

So I wanted to ask whether this is the desired behaviour (set by alternateKey 
name but get only by the primary) or is this a bug? I have also simple patch 
that fixes this and enables also getting the config value by alternateKey.

Thank you
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