[ic] Data appearing from different catalog

[Klaatu IC Hack]

Had an incident where a relatively new version of the strap catalog
slurped in some data from a seperate older circa 2002 foundation
catalog. Both running on the same IC 5.8.2 install.

One of the strap components pulled in the 'banner' value from the
component of the older catalog that looks like this:

[control-set]
        [component]promo[/component]
        [banner]This value was slurped into a non related catalog[/banner]
        [cols]1[/cols]
        [matches]3[/matches]
        [promo_type]new[/promo_type]
[/control-set]

The strap component pulled it in with:
[control name=banner default="[L]Specials[/L]"]

Is there a rational explanation on how this could have happened?

Totally unsure if related but the strap catalog has this variable
which I haven't seen used before:

LINKHOST        127.0.0.1       Admin Control

Or perhaps I have a permissions issue where catalogs can exchange session data?

Thanks for any enlightenment!
K.