Fix type check for otype_from_gtype of GgitCommit
Fix type check for otype_from_gtype of GgitCommit

chergert/libgit2-glib,chergert/libgit2-glib,GNOME/libgit2-glib,weynhamz/GNOME-libgit2-glib,weynhamz/GNOME-libgit2-glib,weynhamz/GNOME-libgit2-glib,weynhamz/GNOME-libgit2-glib,chergert/libgit2-glib,GNOME/libgit2-glib