[gnumeric] Fix document properties types. [#367]

[Jean Bréfort <jbrefort src gnome org>]

commit 0a51da18ba52d752aa85c07e6afd0ba1565e12b7
Author: Jean Brefort <jean brefort normalesup org>
Date:   Sun Nov 18 09:11:48 2018 +0100

    Fix document properties types. [#367]

 NEWS                              | 3 +++
 src/dialogs/ChangeLog             | 5 +++++
 src/dialogs/dialog-doc-metadata.c | 3 ++-
 3 files changed, 10 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index 4162fa6f0..9067c2177 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,8 @@
 Gnumeric 1.12.44
 
+Jean:
+       * Fix document properties types. [#367]
+
 Morten:
        * Fix SWITCH's default argument.  [#354]
        * Fix problem with setting auto-func.  [#357]
diff --git a/src/dialogs/ChangeLog b/src/dialogs/ChangeLog
index afb67b8a9..dcd9ae108 100644
--- a/src/dialogs/ChangeLog
+++ b/src/dialogs/ChangeLog
@@ -1,3 +1,8 @@
+2018-11-18  Jean Brefort  <jean brefort normalesup org>
+
+       * dialog-doc-metadata.c (cb_dialog_doc_metadata_add_clicked): fix data type.
+       [#367]
+
 2018-08-19  Morten Welinder <terra gnome org>
 
        * Release 1.12.43
diff --git a/src/dialogs/dialog-doc-metadata.c b/src/dialogs/dialog-doc-metadata.c
index 06817fc62..7c96459c3 100644
--- a/src/dialogs/dialog-doc-metadata.c
+++ b/src/dialogs/dialog-doc-metadata.c
@@ -1407,7 +1407,8 @@ cb_dialog_doc_metadata_add_clicked (G_GNUC_UNUSED GtkWidget *w,
        const gchar *name = gtk_entry_get_text (state->ppt_name);
        const gchar *value = gtk_entry_get_text (state->ppt_value);
        gchar *name_trimmed = trim_string (name);
-       GType t;
+       GType t = G_TYPE_INVALID; /* we need to initialize that one since
+                                                               gtk_tree_model_get() will only set the low 
bytes */
        GtkTreeIter filter_iter;
 
        if (gtk_combo_box_get_active_iter (state->ppt_type, &filter_iter)) {