I can reliably reproduce the crash about half of the time with the following steps:
 - create a symlink to a folder on the desktop
 - right-click on that symlink and choose the option to send to trash 

Corresponding crash report: https://errors.ubuntu.com/oops/437cbc68-aa03-11e9-a2e9-fa163e6cac46

Relevant logs from journalctl:

juil. 19 10:51:36 bribon gnome-shell[4142]: Object St.Bin (0x55e5ba9becd0), has been already deallocated — impossible to get any property from it. This might be c
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: == Stack trace for context 0x55e5b25cd280 ==
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: #0   7ffcea594890 b   resource:///org/gnome/shell/ui/boxpointer.js:264 (7fc1cd112940 @ 611)
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: == Stack trace for context 0x55e5b25cd280 ==
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: #0   7ffcea594600 b   resource:///org/gnome/shell/ui/layout.js:946 (7fc1cd100040 @ 34)
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: #1   7ffcea5947c0 b   resource:///org/gnome/shell/ui/boxpointer.js:476 (7fc1cd112b80 @ 193)
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: #2   7ffcea594890 b   resource:///org/gnome/shell/ui/boxpointer.js:265 (7fc1cd112940 @ 634)
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: == Stack trace for context 0x55e5b25cd280 ==
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: #0   7ffcea594600 b   resource:///org/gnome/shell/ui/layout.js:947 (7fc1cd100040 @ 243)
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: #1   7ffcea5947c0 b   resource:///org/gnome/shell/ui/boxpointer.js:476 (7fc1cd112b80 @ 193)
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: #2   7ffcea594890 b   resource:///org/gnome/shell/ui/boxpointer.js:265 (7fc1cd112940 @ 634)
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: == Stack trace for context 0x55e5b25cd280 ==
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: #0   7ffcea5947c0 b   resource:///org/gnome/shell/ui/boxpointer.js:478 (7fc1cd112b80 @ 221)
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: #1   7ffcea594890 b   resource:///org/gnome/shell/ui/boxpointer.js:265 (7fc1cd112940 @ 634)
juil. 19 10:51:36 bribon audit[4142]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=5 pid=4142 comm="gnome-shell" exe="/usr/bin/gnome-shell" sig=5 res=1
juil. 19 10:51:36 bribon gnome-shell[4142]: Object St.Bin (0x55e5ba9becd0), has been already deallocated — impossible to access it. This might be caused by the ob
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: GNOME Shell crashed with signal 5
juil. 19 10:51:36 bribon org.gnome.Shell.desktop[4142]: == Stack trace for context 0x55e5b25cd280 ==
juil. 19 10:51:36 bribon gnome-shell[4142]: _clutter_actor_fully_transform_vertices: assertion 'CLUTTER_IS_ACTOR (self)' failed
juil. 19 10:51:36 bribon gnome-shell[4142]: Object St.Bin (0x55e5ba9becd0), has been already deallocated — impossible to access it. This might be caused by the ob
juil. 19 10:51:36 bribon gnome-shell[4142]: clutter_actor_get_transformed_size: assertion 'CLUTTER_IS_ACTOR (self)' failed
juil. 19 10:51:36 bribon gnome-shell[4142]: Object St.Bin (0x55e5ba9becd0), has been already deallocated — impossible to access it. This might be caused by the ob
juil. 19 10:51:36 bribon gnome-shell[4142]: Function allocate terminated with uncatchable exception