GPaste: Ubuntu 19.04 - keybindings don't work

Hi, I’ve downloaded gpaste 3.32.0 tarball (because it’s still not available in official repos) and run:

sudo apt build-dep gpaste
./configure --sysconfdir=/etc
make
sudo make install
sudo glib-compile-schemas /usr/share/glib-2.0/schemas/

The gpaste itself works, shell extension displays it’s icon in the top bar, clipboard catching works.

BUT: keyboard shortcuts don’t. When I try to define a shortcut for “Display the history” and press <Alt> the whole settings window disappear. Already defined shortcuts (defaults) don’t work too - e.g. displaying the UI.
When I run the daemon in debug mode:

jenda@placka: /tmp/gpaste-3.32.0 » env G_MESSAGES_DEBUG=all /usr/libexec/gpaste/gpaste-daemon                                                                                       [22:31:13]
(gpaste-daemon:11609): GLib-GIO-DEBUG: 22:31:14.373: _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ‘gio-vfs’
(gpaste-daemon:11609): Gtk-DEBUG: 22:31:14.401: Connecting to session manager
(gpaste-daemon:11609): GLib-GIO-DEBUG: 22:31:14.423: _g_io_module_get_default: Found default implementation dconf (DConfSettingsBackend) for ‘gsettings-backend’
(gpaste-daemon:11609): dconf-DEBUG: 22:31:14.423: watch_fast: "/org/gnome/GPaste/" (establishing: 0, active: 0)
(gpaste-daemon:11609): dconf-DEBUG: 22:31:14.423: watch_fast: "/org/gnome/shell/" (establishing: 0, active: 0)
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.423: history: elect biggest
(gpaste-daemon:11609): dconf-DEBUG: 22:31:14.423: watch_established: "/org/gnome/GPaste/" (establishing: 1)
(gpaste-daemon:11609): dconf-DEBUG: 22:31:14.423: watch_established: "/org/gnome/shell/" (establishing: 1)
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.428: CLIPBOARD: set text
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.429: atoms init
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.510: item: set state: 1
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.510: history: selected
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.510: clipboards-manager: select
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.510: PRIMARY: select item
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.510: PRIMARY: set text
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.510: CLIPBOARD: select item
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.510: CLIPBOARD: set text
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.510: history: elect biggest
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.511: PRIMARY: owner change
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.511: clipboards-manager: notify
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.511: clipboards-manager: targets ready
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.511: clipboards-manager: text ready
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.511: clipboards-manager: notify finish
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.511: CLIPBOARD: owner change
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.511: clipboards-manager: notify
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.511: clipboards-manager: targets ready
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.511: clipboards-manager: text ready
(gpaste-daemon:11609): GPaste-DEBUG: 22:31:14.511: clipboards-manager: notify finish

(gpaste-daemon:11609): GPaste-WARNING **: 22:31:14.513: Couldn't grab keybindings with gnome-shell: GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: Type of message, “(a(su))”, does not match expected type “(a(suu))”

(gpaste-daemon:11609): GPaste-WARNING **: 22:31:14.513: Couldn't grab keybindings with gnome-shell: GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: Type of message, “(a(su))”, does not match expected type “(a(suu))”

I have:

GNOME Shell 3.32.0
5.0.0-13-generic

Did I miss something/do something wrong?