CondFormat: fix problem during sheet invalidate.

ChangeLog

+2022-10-29  Morten Welinder  <terra@gnome.org>
+
+	* src/sheet-conditions.c (update_group): Fix problem during sheet
+	finalize.
+
+	* src/sheet.c (sheet_destroy_contents): Set cell_hash to NULL
+	after we free it for easier debug.
+
 2022-10-08  Morten Welinder  <terra@gnome.org>
 
 	* src/libgnumeric.c (gnm_pre_parse_init): Use basename of argv[0],

NEWS

@@ -7,6 +7,7 @@ Morten:
 	* Improve various desktop environments' icon discovery.  [#677]
 	* New function ENCODEURL.  [#658]
 	* New libpython configuration.  [#680]
+	* Fix problem relating to sheet remove and conditional format.
 
 --------------------------------------------------------------------------
 Gnumeric 1.12.53

src/sheet-conditions.c

@@ -711,6 +711,10 @@ update_group (CSGroup *g)
 		return;
 	}
 
+	// If we are finalizing the sheet, just get out.
+	if (g->dep.base.sheet->deps == NULL)
+		return;
+
 	pos = &g_array_index (g->ranges, GnmRange, 0).start;
 	gnm_style_conditions_set_pos (g->conds, pos);
 

src/sheet.c

@@ -4943,6 +4943,7 @@ sheet_destroy_contents (Sheet *sheet)
 	/* Remove all the cells */
 	sheet_cell_foreach (sheet, (GHFunc) &cb_remove_allcells, NULL);
 	g_hash_table_destroy (sheet->cell_hash);
+	sheet->cell_hash = NULL;
 
 	/* Delete in ascending order to avoid decrementing max_used each time */
 	for (i = 0; i <= sheet->cols.max_used; ++i)