Strange goings on with the humble link...

Dear Gnu,

I would like to attain how a symbolic link to a directory should be
dereferenced.  I give an example, 

1) From /
2) mkdir etc2
3) cd etc2
4) ln -s /etc/sysconfig 
5) echo > myfile.txt
6) cd sysconfig
7) ln -s ../myfile.txt linktomyfile.txt

Now, if I type pwd "/etc2/sysconfig" is returned, if using the "bash" shell
I type ls ../ [tab] the content of /etc2 is listed, if I type ls ../
[return], the content of /etc is listed, if I type cd .., I return to /etc2,
the link created in step 7 dereferences from /etc/sysconfig and not
/etc2/sysconfig.  To me this behaviour is inconsistent, is this a bug? If
this is intended, then how may I create a link that would dereference from
the "pwd" path rather than the path pointed to by the link? i.e. make the
link created in step 7 work?

Thanks for you time,

With best regards,

Simon.