How to reproduce:

• Create a content A
  • Add a tag on this content
• In search tool, search for contents with the added tag
  • The content A appears in the results => OK
• Create a content B
  • Add a tag on this content too (the same as the A's or not, it does not matter)
  • Archive the content B
• Launch a global indexation
• In search tool, search for contents with the tag added to A
  • There is no result => KO
• Launch a site indexation 
• In search tool, search for contents with the tag added to A
  • The content A appears in the results => OK

If WORKSPACES-1492 is still opened, you have to create and archive  at least 3 contents (B, B' and B'')