orm: fix crash when working with array field

[felipensp]

Possible fix for #22822

_{Huly®: V_0.6-21269}

[spytheman]

It works locally:

Please add the example in the issue, as a test in vlib/v/tests/ and in the skip lists in cmd/tools/vtest-self.v and it will be good to merge.

[felipensp]

It works locally:

Please add the example in the issue, as a test in vlib/v/tests/ and in the skip lists in cmd/tools/vtest-self.v and it will be good to merge.

Done.