A reference refers to the value of the field defined within nearest enclosing scope.
If no field matches the reference within the file, it may match a top-level field of the same package.
If there is still no match, it may match a predefined value.
v: 1
a: {
v: 2
b: v // matches the inner v
}
a: {
c: v // matches the top-level v
}
b: v
v: 1
a: {
v: 2
b: 2
c: 1
}
b: 1