base_url() function doesn't work properly when it used on page with uri segments

[ridho1991]

I test it with latest CI4 code.

Example 1: http//ci4.local/test
echo base_url(); It show http//ci4.local/test (not work properly)
echo base_url('profile'); It show http//ci4.local/profile (work properly)

Example 2: http//ci4.local/test/page
echo base_url(); It show http//ci4.local/test/page (not work properly)
echo base_url('profile'); It show http//ci4.local/test/profile (no work properly)

That's it.