Strange behaviour with cvs rlog and branch tag

[Olivier Imbrechts]

Hello,

I'm using CVS 1.11.2
I try to list files with a specified tag in my repository but depending on 
the tag I do not have the same results :

first, I add a tag to my module with "cvs -d /my_repository rtag -R tag1 
my_module"
Then, I add another tag with "cvs -d /my_repository rtag -R -b tag2 
my_module" to make a branch tag.

When I list files with the first tag I have the following results :

> cvs -d /my_repository rlog -S -R -rtag1 my_module
cvs rlog: Logging my_module
/my_repository/my_module/file1.c,v
/my_repository/my_module/file2.c,v
cvs rlog: Logging my_module/dir1
/my_repository/my_module/dir1/file3.c,v
cvs rlog: Logging my_module/dir2
/my_repository/my_module/dir2/file4.c,v
...

But when I list files with the second tag (branch) I have the following 
results :

> cvs -d /my_repository rlog -S -R -rtag2 my_module
cvs rlog: Logging my_module
cvs rlog: Logging my_module/dir1
cvs rlog: Logging my_module/dir2
...

When listing files tagged with a branch tag I only get directories while it 
works fine with "simple" tag.
Am I missing something or is it a bug?

Thanks in advance

Olivier