`epix_merge(sync = "truncate")` is broken

[brookslogan]

library(dplyr)
#> 
#> Attaching package: 'dplyr'
#> The following objects are masked from 'package:stats':
#> 
#>     filter, lag
#> The following objects are masked from 'package:base':
#> 
#>     intersect, setdiff, setequal, union
library(epiprocess)
#> Loading required package: epidatasets
#> Registered S3 method overwritten by 'tsibble':
#>   method               from 
#>   as_tibble.grouped_df dplyr
#> 
#> Attaching package: 'epiprocess'
#> The following object is masked from 'package:stats':
#> 
#>     filter

x <- as_epi_archive(tibble(geo_value = "ak", time_value = as.Date("2022-06-01"), version = as.Date("2023-11-08") + c(0, 7), x = c(1,2)))
y <- as_epi_archive(tibble(geo_value = "ak", time_value = as.Date("2022-06-01") + 0:10, version = as.Date("2022-06-01"), y = 100 + 0:10))

epix_merge(x, y, sync = "truncate")
#> Error in .checkTypos(e, names_x): subscript out of bounds

^{Created on 2025-02-27 with reprex v2.1.1}

Note that with = FALSE doesn't actually disable data.table's special evaluation rules for i, only for j; some mishap with the i evaluation rules is a likely suspect.