$ git clone -n https://src.fedoraproject.org/rpms/xmodmap.git /var/lib/mock/f40-build-747460-113189/root/chroot_tmpdir/scmroot/xmodmap
Cloning into '/var/lib/mock/f40-build-747460-113189/root/chroot_tmpdir/scmroot/xmodmap'...
$ git fetch origin 49a5a329e7aac075882dcd7fd92189282b362375:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmodmap
 * [new ref]         49a5a329e7aac075882dcd7fd92189282b362375 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49a5a32 SPDX migration