Before this commit, setting a value from the editor did not created
steps but kept the mutations inside _currentStep.
Commands like delete or enter revert the _currentStep.
So each time enter or delete was pressed just after setValue, the
content being set was lost.
Task-2695041
closesodoo/odoo#80597
X-original-commit: 9e9fe73e8124d5d5527f5c5ce205f01f791aac30
Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>