This is still a problem in 3.0rc1
Sorry - just spotted that this bug has already been reported as #2141 but hopefully the additional information provided here will help resolve this more quickly.
You can no longer set/change the meta robots setting in Meta Tags Admin ie the NOROBOTS, NOFOLLOW settings
When you fill in the form field and click the Change Settings button the field blanks and viewing the HTML page source code shows that nothing has happened. The "revisit after" field works fine however.
Old 1.9 sites work fine and sites that have migrated through to 2.2 from 1.9 have their old values preserved but they cannot be changed. New 2.2 sites cannot have the setting established.
Examining the database for a new site shows that the metatag_robots row in the tiki_preferences table is missing. Hacking the table to add the row with appropriate values allows the appropriate HTML code to be generated in the head section of each page BUT the admin form still does not work.
Have also now spotted that ticking any of the Meta keywords options e.g the "Insert freetags in keyword list" and changing the settings does seem to set that option BUT the tick box is then blanked and then there is no way to 'untick' the option or you are not sure if it has been set or not.
very old bug - now fixed/not relevant
update: as of svn version 18744 some of the above is fixed
but the metatag_robots setting still isn't working
the fix for this seems to be:
the above is not fully tested but seems OK
To help developers solve the bug, we kindly request that you demonstrate your bug on a show2.tiki.org instance. To start, simply select a version and click on "Create show2.tiki.org instance". Once the instance is ready (in a minute or two), as indicated in the status window below, you can then access that instance, login (the initial admin username/password is "admin") and configure the Tiki to demonstrate your bug. Priority will be given to bugs that have been demonstrated on show2.tiki.org.
To help developers solve the bug, we kindly request that you demonstrate your bug on a show.tikiwiki.org instance. To start, simply select a version and click on "Create show.tikiwiki.org instance". Once the instance is ready (in a minute or two), as indicated in the status window below, you can then access that instance, login (the initial admin username/password is "admin") and configure the Tiki to demonstrate your bug. Priority will be given to bugs that have been demonstrated on show.tikiwiki.org.