tasks #7054: fix bug: ajax search does not use text field but some stored DOM value

Change-Id: Ia8b4670a45ca532ac33e0064e1b39930b0405887
Merge commit 'refs/changes/38/2638/4' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  tasks #7054: fix bug: ajax search does not use text field but some stored DOM value
This is Tuleap 7.1.99.40