[geary/mjog/composer-autocomplete-fixes: 3/4] Don't set an email autocomplete key when cursor is at beginning

[Michael Gratton <mjog src gnome org>]

commit aa393a154f3e0ad4fb74646176d77dd6fe99915f
Author: Michael Gratton <mike vee net>
Date:   Wed Feb 12 13:07:09 2020 +1100

    Don't set an email autocomplete key when cursor is at beginning
    
    Fixes the autocomplete showing up again after having just completed an
    addresss.

 src/client/composer/contact-entry-completion.vala | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/client/composer/contact-entry-completion.vala 
b/src/client/composer/contact-entry-completion.vala
index 59a8ec06..9d794d82 100644
--- a/src/client/composer/contact-entry-completion.vala
+++ b/src/client/composer/contact-entry-completion.vala
@@ -125,7 +125,8 @@ public class ContactEntryCompletion : Gtk.EntryCompletion, Geary.BaseInterface {
             int current_char = 0;
             bool in_quote = false;
             while (text.get_next_char(ref next_idx, out c)) {
-                if (current_char == cursor_pos) {
+                if (current_char != 0 &&
+                    current_char == cursor_pos) {
                     this.current_key = text.slice(start_idx, next_idx).strip();
                     this.cursor_at_address = this.address_parts.size;
                 }