Comment 2 for bug 804904

Failure isn't silent - log window says:

Searching for source [subsheet-foo-bar.sch]
Could not find [subsheet-foo-bar.sch] in any SourceLibrary
Cannot find source [subsheet-foo-bar.sch]

A dialog would be more explicit though.

However, in latest git HEAD, selecting the symbol gives (in the log window):

Backtrace:
In unknown file:
   ?: 0* [run-hook #<hook 1 7f630fa5c070 ? ?> ...
   ?: 1* [#<geda-object 0x2296a10>]

<unnamed port>: In expression (#<geda-object 0x2296a10>):
<unnamed port>: Wrong type to apply: #<geda-object 0x2296a10>

Backtrace:
In unknown file:
   ?: 0* [run-hook #<hook 1 7f630fa5c070 ? ?> #<geda-object 0x22a2e40> ...]

<unnamed port>: In procedure run-hook in expression (run-hook #<hook 1 7f630fa5c070 ? ?> #<geda-object 0x22a2e40> ...):
<unnamed port>: Hook #<hook 1 7f630fa5c070 ? ?> requires 1 arguments