[gnumeric] Paste Special: allow from clipboard too, not just in-process.

[Morten Welinder <mortenw src gnome org>]

commit ea83a565f3217d0c77cc92ef806426b8e09fb91c
Author: Morten Welinder <terra gnome org>
Date:   Fri Apr 20 14:31:05 2018 -0400

    Paste Special: allow from clipboard too, not just in-process.

 NEWS            |    1 +
 src/clipboard.c |    2 +-
 src/wbc-gtk.c   |    2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index 4f994f8..5a7ea24 100644
--- a/NEWS
+++ b/NEWS
@@ -14,6 +14,7 @@ Morten:
        * Avoid most punting for object properties.
        * Fix paste from LibreOffice.
        * Fix paste to LibreOffice -- use Biff8.  [#795280]
+       * Allow inter-process paste-special.  [#346630]
 
 --------------------------------------------------------------------------
 Gnumeric 1.12.39
diff --git a/src/clipboard.c b/src/clipboard.c
index ad99426..5753541 100644
--- a/src/clipboard.c
+++ b/src/clipboard.c
@@ -290,7 +290,7 @@ paste_cell (int target_col, int target_row,
                                                 value_dup (src->val), TRUE);
                        if (NULL != relo)
                                gnm_expr_top_unref (relo);
-               } else {
+               } else if (src->val) {
                        GnmValue *newval = NULL;
                        GnmValue const *oldval = src->val;
 
diff --git a/src/wbc-gtk.c b/src/wbc-gtk.c
index fac5ebc..f6c9467 100644
--- a/src/wbc-gtk.c
+++ b/src/wbc-gtk.c
@@ -1532,7 +1532,7 @@ wbcg_menu_state_update (WorkbookControl *wbc, int flags)
        }
        if (MS_PASTE_SPECIAL & flags)
                wbc_gtk_set_action_sensitivity (wbcg, "EditPasteSpecial",
-                       !gnm_app_clipboard_is_empty () &&
+                       // Inter-process paste special is now allowed
                        !gnm_app_clipboard_is_cut () &&
                        !edit_object);
        if (MS_PRINT_SETUP & flags)