Before this commit, dropzones were created around invisible elements (e.g. the snippet popup). So we had 2 dropzones instead of one at some locations. After this commit, we avoid creating dropzones around elements that must not have dropzones. task-2312878 closes odoo/odoo#65230 X-original-commit: ad56d50e3da000cacdc70d9230cad308d03680bf Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>