[bug-gettext] po-mode.el: feature request: keep the cursor at its position in msgstr edit window

[Luc Pionchon]

Hello,

When opening a msgstr for editing (RET), the cursor 
is always placed at the beginning of the string.

When I review a .po file I often follow my reading with the cursor. When I spot a mistake, my cursor is right on the mistake. Then I open the msgstr for correction (RET), but the cursor is moved away from the mistake to correct. This is a bit frustrating.

I would like that, if the 
cursor is somewhere on the msgstr when I hit RET, then the cursor is placed at the same place in 
the string to edit in the new window.