Select pasted text on paste

This is more consistent with the recently changed ! and <a-!>
behaviour

rc/filetype/c-family.kak

@@ -390,7 +390,7 @@ define-command -hidden c-family-insert-include-guards %{
     evaluate-commands %sh{
         case "${kak_opt_c_include_guard_style}" in
             ifdef)
-                echo 'execute-keys ggi<c-r>%<ret><esc>ggI/<esc>xs^.*/<ret>dxs\.<ret>c_<esc><space>A_INCLUDED<esc>ggxyppI#ifndef<space><esc>jI#define<space><esc>jI#endif<space>//<space><esc>O<esc>'
+                echo 'execute-keys gg"%PI/<esc>xs^.*/<ret>dxs\.<ret>r_A_INCLUDED<esc>xyPPI#ifndef<space><esc>jI#define<space><esc>jI#endif<space>//<space><esc>O<esc>'
                 ;;
             pragma)
                 echo 'execute-keys ggi#pragma<space>once<esc>'

src/normal.cc

@@ -683,10 +683,13 @@ void paste(Context& context, NormalParams params)
     ScopedEdition edition(context);
     context.selections().for_each([&](size_t index, Selection& sel) {
         auto& str = strings[std::min(strings.size()-1, index)];
-        if (mode == PasteMode::Replace)
-            replace(buffer, sel, str);
-        else
-            insert(buffer, sel, paste_pos(buffer, sel, mode, linewise), str);
+        auto& min = sel.min();
+        auto& max = sel.max();
+        BufferRange range = (mode == PasteMode::Replace) ?
+            buffer.replace(min, buffer.char_next(max), str)
+          : buffer.insert(paste_pos(buffer, sel, mode, linewise), str);
+        min = range.begin;
+        max = range.end > range.begin ? buffer.char_prev(range.end) : range.begin;
     });
 }