Bear with me

When I run 'sudo conary updateall', I get the following issue:
Applying update job 1 of 20:
Erase fast-user-switch-applet(:data :lib :locale :runtime)=2.22.0-0.1-1[~!builddocs]
Update filezilla:runtime (3.0.9.2-1-0.1 -> 3.0.9.3-0.1-1)
Update poedit:runtime (1.3.9-1.1-1 -> 1.3.9-1.2-1)
Install wxGTK:data=2.8.7-3-1
Install wxGTK:lib=2.8.7-3-1
Erase wxWidgets:data=2.8.7-1.1-1
Erase wxWidgets:lib=2.8.7-1.1-1
Update yelp(:data :locale :runtime) (2.22.1-0.4-3 -> 2.22.1-0.5-1)
Creating database transaction (8 of 8)...changeset cannot be applied:
applying update would cause errors:
file contents conflict for /usr/bin/yelp
... so presumably there is some problem here updating yelp.
This issue isn't reported by PackageKit when I run the update from the applet: I review the updates, then click on 'proceed' (or whatever it's actually labeled). Eventually, usual error window with the expander pops up, but only briefly, and then it tells me the update completed, when it obviously didn't.
To get around it, I had to erase yelp, do the updateall, and then re-install yelp