avy-goto-line: display problem with leading tabs and the at-full style

[zhaojiangbin]

1. Set the at-full as style for avy-goto-line.
2. Input two lines of text in a text mode buffer - the first line starting with a tab (entered with C-q C-i) then any non-white space text, second line starting with 8 spaces followed by any non-white spaces.
3. M-x avy-goto-line, note the non-white space text in the first line jumped to the left.

It also shows up in a magit-status buffer with unstaged or staged items which are indented with tabs.

[abo-abo]

Thanks.