In resource.calendar.attendance, we store the start and end hour of an
interval as floats.
eg: 17 hours 9 minutes is stored as 17.15
When converting this float to a datetime object, the method
float_to_time always rounds down the value, which may be wrong if, due
to float imprecisions, 0.15 hours is converted to 8.999... minutes (and
was then rounded to 8).
We do fix this behaviour by rounding to the closest integer.
Thanks to @jem-odoo for his help troubleshooting this issue.
opw-1872166
Richard Mathot
c5d95f1b37