Duplicate source package in ubuntu focal repository

What I’m trying to do:
I am mirroring the Ubuntu focal repository using aptly, including source files

Where I’m stuck:
I’m getting checksum mismatch errors on some packages:

mirror-update-nginx.org:nginx.org:focal:nginx[898320]: ERROR: unable to update: download errors:
mirror-update-nginx.org:nginx.org:focal:nginx[898320]:   https://nginx.org/packages/mainline/ubuntu/pool/nginx/n/nginx-module-xslt/nginx-module-xslt_1.27.0.orig.tar.gz: size check mismatch 1244887 != 1246820
mirror-update-nginx.org:nginx.org:focal:nginx[898320]:   https://nginx.org/packages/mainline/ubuntu/pool/nginx/n/nginx-module-perl/nginx-module-perl_1.27.0.orig.tar.gz: size check mismatch 1244887 != 1246820
mirror-update-nginx.org:nginx.org:focal:nginx[898320]:   https://nginx.org/packages/mainline/ubuntu/pool/nginx/n/nginx-module-otel/nginx-module-otel_1.27.0+0.1.0.orig.tar.gz: size check mismatch 1244887 != 1246820
mirror-update-nginx.org:nginx.org:focal:nginx[898320]:   https://nginx.org/packages/mainline/ubuntu/pool/nginx/n/nginx/nginx_1.27.0.orig.tar.gz: size check mismatch 1244887 != 1246820
mirror-update-nginx.org:nginx.org:focal:nginx[898320]:   https://nginx.org/packages/mainline/ubuntu/pool/nginx/n/nginx-module-njs/nginx-module-njs_1.27.0+0.8.4.orig.tar.gz: size check mismatch 1244887 != 1246820
mirror-update-nginx.org:nginx.org:focal:nginx[898320]:   https://nginx.org/packages/mainline/ubuntu/pool/nginx/n/nginx-module-image-filter/nginx-module-image-filter_1.27.0.orig.tar.gz: size check mismatch 1244887 != 1246820

What I’ve already tried:
I’ve checked the Sources dist file and sure enough there are duplicates of the same file with different sizes and checksums:

> curl -s https://nginx.org/packages/mainline/ubuntu/dists/focal/nginx/source/Sources.gz | zgrep -B 2 xslt_1.27.0.orig
Checksums-Sha1:
 e45d6c8ad2183e08571fa65e29e008c562d7502f 1645 nginx-module-xslt_1.27.0-1~focal.dsc
 13f8f915966217c9de583705759f4d4f74d0bf74 1246820 nginx-module-xslt_1.27.0.orig.tar.gz
--
Checksums-Sha256:
 fc1681990fc8294fd206cf1398d0f0fcbe262791e36e152ba5adaa75ac69c933 1645 nginx-module-xslt_1.27.0-1~focal.dsc
 47cfe9d878694e553c1beff3db439dadb5fe3b30318be6062bf71d4f2e8df788 1246820 nginx-module-xslt_1.27.0.orig.tar.gz
--
Files:
 815a685214fd0c4047330de929911374 1645 nginx-module-xslt_1.27.0-1~focal.dsc
 a50c8dbc4a84bebe6ccb00bbc8729539 1246820 nginx-module-xslt_1.27.0.orig.tar.gz
--
Checksums-Sha1:
 c3df1960c4ab41ba1137dd1323c32ddc2a7b72b4 1645 nginx-module-xslt_1.27.0-2~focal.dsc
 2bd0713ba75a746a72dcfdb59c67ace746d23cf8 1244887 nginx-module-xslt_1.27.0.orig.tar.gz
--
Checksums-Sha256:
 eb16840aff0c99b0f9c717b223365bac59d68e29438b32adfe13c260998ea2b2 1645 nginx-module-xslt_1.27.0-2~focal.dsc
 b7230e3cf87eaa2d4b0bc56aadc920a960c7873b9991a1b66ffcc08fc650129c 1244887 nginx-module-xslt_1.27.0.orig.tar.gz
--
Files:
 789e0721b96d31acc8a1d4fb8f306b63 1645 nginx-module-xslt_1.27.0-2~focal.dsc
 a1b1cbaed987893c63cf6ab23809d85f 1244887 nginx-module-xslt_1.27.0.orig.tar.gz