[BUGFIX] Continue searching after empty result in suggest wizard

Apply the same fix as was done for the LiveSearch.

Resolves: #78457
Related: #77566
Releases: master,7.6
Change-Id: I861e6267b4804f8009d138e22520f1b95ba421b6
Reviewed-on: https://review.typo3.org/50536


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>