Do not avoid end of lines after selecting modified ranges in undo

Fixes #751

src/normal.cc

@@ -1431,7 +1431,6 @@ void undo(Context& context, NormalParams params)
         auto ranges = compute_modified_ranges(buffer, timestamp);
         if (not ranges.empty())
             context.selections_write_only() = std::move(ranges);
-        context.selections().avoid_eol();
     }
     else
         context.print_status({ "nothing left to undo", get_face("Information") });
@@ -1446,7 +1445,6 @@ void redo(Context& context, NormalParams params)
         auto ranges = compute_modified_ranges(buffer, timestamp);
         if (not ranges.empty())
             context.selections_write_only() = std::move(ranges);
-        context.selections().avoid_eol();
     }
     else
         context.print_status({ "nothing left to redo", get_face("Information") });

test/regression/751-wrong-selection-after-undo/cmd

@@ -0,0 +1 @@
+mS\d+<ret>du

test/regression/751-wrong-selection-after-undo/in

@@ -0,0 +1,3 @@
+{
+11, 22
+};

test/regression/751-wrong-selection-after-undo/selections

@@ -0,0 +1,3 @@
+{
+:, :
+}