Bug 35012: Prevent Click handler firing twice

Bug 35012: Prevent Click handler firing twice

test plan:
a) build a new basket + order line using "item create on placing an order"
b) in the item creation dialog (neworderempty.pl) please use the webbrowsers dev tools to analyze the [...] button next to subfield d (Date acquired) and inspect the events that get fired by clicking
c) notice the Clicktag_952_subfield_d_* event gets fired twice.
d) apply patch and reload page
e) there should be only 1 click handler left (besides the jquery one), which points to the Clicktag_952_subfield_* function

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
See also bug 35298. You may have seen that the Focus event of dateaccessioned
did not fire. But that is related to use of Flatpickr in this plugin.
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit ec3fe5d41e03d969b876f0948e81389b0a20df4c)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit f846ee85ecbe7f75e9ba842a7cae905813c909d4)
Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>