[gnumeric] Sheet Style: avoid incorrect unlinking of style dependents.

[Morten Welinder <mortenw src gnome org>]

commit 314faec3197633e108ca7e23b96b5c0f06b8a5d4
Author: Morten Welinder <terra gnome org>
Date:   Sun Feb 10 13:53:05 2013 -0500

    Sheet Style: avoid incorrect unlinking of style dependents.
    
    I don't think there could be any that this point, but be safe.

 ChangeLog         |    5 +++++
 src/sheet-style.c |    8 +++++---
 2 files changed, 10 insertions(+), 3 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 8de3248..1ed38e1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-02-10  Morten Welinder  <terra gnome org>
+
+	* src/sheet-style.c (cb_unlink): gnm_style_unlink_dependents
+	doesn't belong here.  We handle everything in rstyle_apply.
+
 2013-02-08  Morten Welinder  <terra gnome org>
 
 	* src/sheet-style.c (rstyle_apply): Take extra range argument and
diff --git a/src/sheet-style.c b/src/sheet-style.c
index 1911774..47aa441 100644
--- a/src/sheet-style.c
+++ b/src/sheet-style.c
@@ -441,6 +441,11 @@ static int tile_allocations = 0;
 #endif
 
 
+/*
+ * Destroy a CellTile (recursively if needed).  This will unlink all the
+ * styles in it.  We do _not_ unlink style dependents here.  That is done
+ * only in rstyle_apply.
+ */
 static void
 cell_tile_dtor (CellTile *tile)
 {
@@ -735,9 +740,6 @@ static void
 cb_unlink (void *key, G_GNUC_UNUSED void *value, G_GNUC_UNUSED void *user)
 {
 	GnmStyle *style = key;
-	GnmRange r;
-	range_init_full_sheet (&r, style->linked_sheet);
-	gnm_style_unlink_dependents (style, &r);
 	gnm_style_unlink (style);
 }