[Help-bash] Smart way to override nocaseglob for a single glob?

[Marcel Partap]

Dear folks,
because of the improvement it gives when working in mixed case 
environments (f.e. when working with digital photos from FAT volumes - 
often the extension might be uppercase - *.jpg will not match these 
without nocaseglob) I have the flag universally enabled. But every now 
and then, I checkout some software repository and would like to have a 
gaze at the docs, historically uppercase text files in the project's 
root directory like README, INSTALL, NEWS, TODO..
However, with nocaseglob enabled, the expedient "ls 
[[:upper:]][[:upper:]]*" returns *nothing*. Looking at the source I 
figured out the reason seems to be bash setting the REG_ICASE flag, 
which makes sense. The response of the regex function to completly drop 
the [:upper:] character class is unexpected behaviour for me, but hardly 
a bug.
Can anyone come up with something more elegant then f.e.
> ( shopt -u nocaseglob; ls -d /usr/src/repositories/*/[[:upper:]][[:upper:]]* ); 
> shopt nocaseglob
?
Not that the issue can't be worked around, but^^
#Regards!Marcel