xwayland-devel checksum error

[Grzegorz Junka]

Why am I getting this:

===> Fetching all distfiles required by xwayland-devel-1.20.0.641_1 for 
building
=> SHA256 Checksum OK for 
xorg-xserver-785e59060c00129e47da6c0877604a56d7e0e32f_GL0.tar.gz.
=> SHA256 Checksum mismatch for 71749de24509.patch.
=> SHA256 Checksum mismatch for 1e897704c822.patch.
=> SHA256 Checksum mismatch for 83cda3ce3195.patch.
===>  Giving up on fetching files:  71749de24509.patch 
1e897704c822.patch  83cda3ce3195.patch
Make sure the Makefile and distinfo file 
(/usr/ports/x11-servers/xwayland-devel/distinfo)
are up to date.  If you are absolutely sure you want to override this
check, type "make NO_CHECKSUM=yes [other args]".
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/x11-servers/xwayland-devel
*** Error code 1

Stop.
make: stopped in /usr/ports/x11-servers/xwayland-devel
=>> Cleaning up wrkdir
===>  Cleaning for xwayland-devel-1.20.0.641_1
build of x11-servers/xwayland-devel | xwayland-devel-1.20.0.641_1 ended 
at Wed May  6 02:57:16 UTC 2020
build time: 00:00:27
!!! build failure encountered !!!