Q date range v-model remain object if select same date in range mode

[abumalekFayed]

When using range mode in q date the binding transform to be object with from and to props but if i select the same date twice the binding become just single props with the selected date.
It will be good if the binding remain as object contain from and to props even i select the same date in range mode as i may need to select time range in the same date.