bash-3.1.1: source does not work in conjunction with process substitution

[Dmitry V. Levin]

Hi,

The "source" builtin does not work in conjunction with process
substitution:

$ bash -ec 'cat <(echo echo 1)'                                                 
                             
echo 1                                                                          
                             
$ bash -ec '. <(echo echo 1)'                                                   
                             
$ strace -e trace=file,desc bash -ec '. <(echo echo 1)'                         
                             
[...]                                                                           
                             
stat64("/dev/fd/63", {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0                
                             
open("/dev/fd/63", O_RDONLY|O_LARGEFILE) = 3                                    
                             
fstat64(3, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0                          
                             
read(3, "", 0)                          = 0                                     
                             
close(3)                                = 0                                     
                             

Original bug report:
https://bugzilla.altlinux.org/show_bug.cgi?id=7475


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