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The commit 090eb5336c (refs: selectively set prefix in the seek functions, 2025-07-15) modified the ref-cache iterator to support seeking to a specified marker without setting the prefix. The commit adds and uses an integer 'len' to capture the length of the seek marker to compare with the entries of a given directory. Since the type of the variable is 'int', this is met with a typecast of converting a `strlen` to 'int' so it can be assigned to the 'len' variable. This is whole operation is a bit wrong: 1. Since the 'len' variable is eventually used in a 'strncmp', it should have been of type 'size_t'. 2. This also truncates the value provided from 'strlen' to an int, which could cause a large refname to produce a negative number. Let's do the correct thing here and simply use 'size_t' for `len`. Signed-off-by: Karthik Nayak <karthik.188@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>