Sample .fig project attached. Export the component and specify the following in "Home -> Properties":

property int myInt: width > 100 ? 200 : 50

Something similar should also reproduce the issue, as long as it contains ternary operator. It is exported as

myInt: "width > 100 ? 200 : 50"

which makes no sense at all.

The problem lies in ternary operator itself. Simple comparison works just fine. For example,

property bool myBool: width > 100

is exported as

property bool myBool: true

(Actually, it is not that perfect either since width may not be always larger than 100 but this bug report is mainly about ternary operator).