Clean the "current in integration" field on reopen

Note this is done automatically by mv_reopened_out_from_current,
hourly, but if we can do it now for these automatic reopens, better.
(that saves one notification in the Tracker)

Author: stronk7

tracker_automations/manage_waiting_for_feedback/manage_waiting_for_feedback.sh

@@ -137,6 +137,7 @@ for issue in $( sed -n 's/^"\(MDL-[0-9]*\)".*/\1/p' "${resultfile}" ); do
     ${basereq} --action transitionIssue \
                --issue ${issue} \
                --transition "Reopen Issue" \
+               --custom "customfield_10211:" \
                --comment "${comment}"
 done