StacktraceTop: g_assertion_message (domain=0x0, file=0x838efd4 "i686-linux-gnu/library/LibraryWindow.c", line=4719, func=0x838fcc0 "library_window_get_notebook_pos", message=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gtestutils.c:1425 g_assertion_message_expr (domain=0x0, file=0x838efd4 "i686-linux-gnu/library/LibraryWindow.c", line=4719, func=0x838fcc0 "library_window_get_notebook_pos", expr=0x838e909 "layout != NULL") at /build/buildd/glib2.0-2.30.0/./glib/gtestutils.c:1436 library_window_get_notebook_pos (self=0x9fee028, page=<optimized out>) at i686-linux-gnu/library/LibraryWindow.c:4719 library_window_switch_to_page (self=0x9fee028, page=0xa21c000) at i686-linux-gnu/library/LibraryWindow.c:5137 library_window_switch_to_import_queue_page (self=0x9fee028) at i686-linux-gnu/library/LibraryWindow.c:4539
StacktraceTop: message (domain=0x0, file=0x838efd4 "i686-linux- gnu/library/ LibraryWindow. c", line=4719, func=0x838fcc0 "library_ window_ get_notebook_ pos", message=<optimized out>) at /build/ buildd/ glib2.0- 2.30.0/ ./glib/ gtestutils. c:1425 message_ expr (domain=0x0, file=0x838efd4 "i686-linux- gnu/library/ LibraryWindow. c", line=4719, func=0x838fcc0 "library_ window_ get_notebook_ pos", expr=0x838e909 "layout != NULL") at /build/ buildd/ glib2.0- 2.30.0/ ./glib/ gtestutils. c:1436 window_ get_notebook_ pos (self=0x9fee028, page=<optimized out>) at i686-linux- gnu/library/ LibraryWindow. c:4719 window_ switch_ to_page (self=0x9fee028, page=0xa21c000) at i686-linux- gnu/library/ LibraryWindow. c:5137 window_ switch_ to_import_ queue_page (self=0x9fee028) at i686-linux- gnu/library/ LibraryWindow. c:4539
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