Clicking on empty input throws immediate exception.

[ghost]

angular.js:78 Uncaught Error: [$parse:syntax] Syntax Error: Token ':' not a primary expression at column 1 of the expression [::dayOfWeek.firstLetter] starting at [::dayOfWeek.firstLetter].
http://errors.angularjs.org/1.2.24/$parse/syntax?p0=%3A&p1=not%20a%20primar…ression&p2=1&p3=%3A%3AdayOfWeek.firstLetter&p4=%3A%3AdayOfWeek.firstLetter(anonymous function) @ angular.js:78throwError @ angular.js:10544primary @ angular.js:10519unary @ angular.js:10767multiplicative @ angular.js:10750additive @ angular.js:10741relational @ angular.js:10732equality @ angular.js:10723logicalAND @ angular.js:10714logicalOR @ angular.js:10702ternary @ angular.js:10686assignment @ angular.js:10669expression @ angular.js:10665filterChain @ angular.js:10631statements @ angular.js:10610parse @ angular.js:10494(anonymous function) @ angular.js:11305$interpolate @ angular.js:8782addTextInterpolateDirective @ angular.js:6959collectDirectives @ angular.js:6208compileNodes @ angular.js:6039compileNodes @ angular.js:6055compile @ angular.js:5976applyDirectivesToNode @ angular.js:6386compileNodes @ angular.js:6043compileNodes @ angular.js:6055compileNodes @ angular.js:6055compile @ angular.js:5976DatetimePickerCtrl.openDatetimePicker @ angularjs-datetime-picker.js:60open @ angularjs-datetime-picker.js:23(anonymous function) @ angularjs-datetime-picker.js:326

[mhkoca]

same problem on me. is there any solution?