Bug 34146: Add a client-side check with maxlength too

Bug 34146: Add a client-side check with maxlength too

Test plan:
Try to add more than 3 characters now in the number of copies.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 143693e217c2ef4616678aa1b1cf9e53e2b0e456)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit e11650c69c1ed08524935d7eb20d02aeb59fe595)
Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>