The documentation for options merging doesn't describe the default behaviour for how arrays are merged.
Currently it seems that arrays will merge by position, that is merging [1, 2, 3] onto ["a", "b", "c", "d"] would produce [1, 2, 3, "d"]. It also appears that if you want a shorter array that the original you'd need to specify a merge policy of "replace" for that option path.
The documentation for options merging doesn't describe the default behaviour for how arrays are merged.
Currently it seems that arrays will merge by position, that is merging
[1, 2, 3]onto["a", "b", "c", "d"]would produce[1, 2, 3, "d"]. It also appears that if you want a shorter array that the original you'd need to specify a merge policy of "replace" for that option path.see channel discussion: https://botbot.me/freenode/fluid-work/2017-07-04/?msg=88145239&page=1.
Additional context or notes
Originally filed as FLUID-6164 by @jobara on July 4, 2017.