binary-factory.kde.org/job/KDevelop_Release_win64 started to fail over some files from the kdevelop release tarballs with 5.3.3, created with releaseme: during extraction 7-zip starts to try to overwrite files, with filename path cut at length 100, failing and then things run against the wall.

It worked before with 5.3.2 tarballs, which had been tarballed by someone else (potentially on Debian/Ubuntu), while I use openSUSE TW. For me there the default format has been changed by packagers to be "posix" (as tar --show-defaults tells me).
Compare also https://www.gnu.org/software/tar/manual/html_section/tar_67.html especially the "Usually, GNU tar is configured to create archives in `gnu' format, however, future version will switch to `posix'."

Searching around, I found that 7-zip seems yet to have catch up to digest the PAX/POSIX format -> https://sourceforge.net/p/sevenzip/bugs/2116/

So if Windows users shall be target consumers of tarballs created with releaseme, it might be better if releaseme when calling tar tries to enforce a format which is understood by 7-zip (potentially "gnu" or whatever is default on ubuntu).

No own opinion here, just reporting observation. Leaving to you and Windows support people what to do to help them.

Respective log from https://binary-factory.kde.org/job/KDevelop_Release_win64/518/console :
--- 8< ---
14:30:21  *** Action: unpack for extragear/kdevelop/kdevelop ***
14:30:22  executing command: C:\Craft\BinaryFactory\windows-msvc2017_64-cl\dev-utils\bin\7za.exe x C:\Craft\Downloads\archives\extragear\kdevelop\kdevelop\kdevelop-5.3.3.tar.xz -so | C:\Craft\BinaryFactory\windows-msvc2017_64-cl\dev-utils\bin\7za.exe x -si -oC:\_\784c5bb0 -ttar
14:30:22  
14:30:22  7-Zip (a) 19.00 (x64) : Copyright (c) 1999-2018 Igor Pavlov : 2019-02-21
14:30:22  
14:30:22  
14:30:22  Extracting archive: 
14:30:23  --
14:30:23  Path = 
14:30:23  Type = tar
14:30:23  Code Page = UTF-8
14:30:23  
14:30:23  
14:30:23  Would you like to replace the existing file:
14:30:23    Path:     C:\_\784c5bb0\kdevelop-5.3.3\plugins\cmake\tests\manual\conditions_in_subdirectory_based_on_root_variables\subdire
14:30:23    Size:     0 bytes
14:30:23    Modified: 2019-07-17 15:35:47
14:30:23  with the file from archive:
14:30:23    Path:     kdevelop-5.3.3\plugins\cmake\tests\manual\conditions_in_subdirectory_based_on_root_variables\subdire
14:30:23    Size:     220 bytes (1 KiB)
14:30:23    Modified: 2019-07-17 15:35:47
14:30:23  ? (Y)es / (N)o / (A)lways / (S)kip all / A(u)to rename all / (Q)uit? (Y)es / (N)o / (A)lways / (S)kip all / A(u)to rename all / (Q)uit? (Y)es / (N)o / (A)lways / (S)kip all / A(u)to rename all / (Q)uit? (Y)es / (N)o / (A)lways / (S)kip all / A(u)to rename all / (Q)uit? (Y)es / (N)o / (A)lways / (S)kip all / A(u)to rename all / (Q)uit? 
14:30:23  ERROR: Unspecified error
--- 8< ---