$ in the function name results in wrong function being invoked

jjs> function f(){ function g(){return 0} function g(){return 1} function g$1(){return 2}; return g$1() }f()

Expected: returns 2
Actual: returns 1

jjs> function f(){ function g(){return 0} var h=function g(){return 1}; function g$1(){return 2}; return h() }f()

Expected: returns 1
Actual: returns 2