Strange behaviour when sourcing files with functions

[Henk Csaba]

Configuration Information [Automatically generated, do not change]:
Machine: i386
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i386' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i386-pc-linux-gnu' 
-DCONF_VENDOR='pc' -DSHELL -DHAVE_CONFIG_H   -I.  
-I/home/doko/packages/bash/bash-2.05a 
-I/home/doko/packages/bash/bash-2.05a/include 
-I/home/doko/packages/bash/bash-2.05a/lib -g -O2
uname output: Linux gold 2.4.20 #313 SMP Mon Jan 20 12:43:07 CET 2003 i686 
unknown
Machine Type: i386-pc-linux-gnu

Bash Version: 2.05a
Patch Level: 0
Release Status: release

Description:

In the following '$' symbolizes the bash prompt and we imitate an interactive 
bash session.

$ echo '. foo ooh ; echo $1' > fooscript
$ echo : > foo
$ bash fooscript aah
aah
$ echo 'fnc() { :; } ; fnc' > foo
$ bash fooscript aah
ooh

I find it very strange that the $1 of a script becomes overwitten by a . 
command. It smells
like a bug.

Csaba