DatePicker: datepicker_instActive released on instance destroy

Fixes #10668
Closes gh-1362

diff --git a/ui/datepicker.js b/ui/datepicker.js
index d3fe3dd1fe94f50b9db0b88488773e7990e87c69..34ffc578edb75cd087ba9044719db74dc1988ea0 100644 (file)
--- a/ui/datepicker.js
+++ b/ui/datepicker.js
@@ -389,6 +389,10 @@ $.extend(Datepicker.prototype, {
                } else if (nodeName === "div" || nodeName === "span") {
                        $target.removeClass(this.markerClassName).empty();
                }
+
+               if ( datepicker_instActive === inst ) {
+                       datepicker_instActive = null;
+               }
        },
 
        /* Enable the date picker to a jQuery selection.