$ git clone -n https://src.fedoraproject.org/rpms/webkit2-sharp.git /var/lib/mock/f40-build-805059-144686/root/chroot_tmpdir/scmroot/webkit2-sharp
Cloning into '/var/lib/mock/f40-build-805059-144686/root/chroot_tmpdir/scmroot/webkit2-sharp'...
$ git fetch origin 518c2d23484d0ae666b97135080f78236b46b307:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/webkit2-sharp
 * [new ref]         518c2d23484d0ae666b97135080f78236b46b307 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 518c2d2 fix previous patch on suggestion in #2252635