fdo#68414: SIDEBAR: property's Text named incorrectly

Change-Id: I2b1fdbde3655b26ec7b94fb35e1277be532d3232
Reviewed-on: https://gerrit.libreoffice.org/6480
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>