I had to solve this using css:
input.input-active.focused.dash-cell-value{
text-align: inherit !important;
}
input.input-active.unfocused.dash-cell-value{
text-align: inherit !important;
}
Curious to see, if there is a better solution without css but this should help you cure the symptom. Generally, checking developer tools of the browser you are using (e.g. by selecting “Inspect element”) goes a long way for debugging/improving the css.