"Options" input box for MSBuild Task of Bamboo cannot handle parameters with multiple values which contain space symbol

In Bamboo, when I create a MSBuild Task,

in "Options" input box, I wanted to add a msbuild property "ReferencePath" and it contained 2 paths:

C:\Program Files (x86)\WiX Toolset v3.7\SDK

C:\Program Files (x86)\DGIT\bin

So in the options, the input was"

/p:ReferencePath="C:\Program Files (x86)\WiX Toolset v3.7\SDK;C:\Program Files (x86)\DGIT\bin"

This would cause a build error because of "MSBUILD : error MSB1006: Property is not valid.". I guess the reason for this is:

When Bamboo handles this input box, it would delete all the quotation marks from the input.

The workaround would be (Cheating):

In the "Project File", the Bamboo takes whatever is in the box, wrap it in a pair of quotation marks. So we can inject code into it by adding another pair of quotation marks:

DGiT.Build.Wix.CA.sln" /p:ReferencePath="C:\Program Files (x86)\WiX Toolset v3.7\SDK;C:\Program Files (x86)\DGIT\bin