$ git clone -n https://src.fedoraproject.org/rpms/mingw-glslang.git /var/lib/mock/f40-build-2211633-52225/root/chroot_tmpdir/scmroot/mingw-glslang
Cloning into '/var/lib/mock/f40-build-2211633-52225/root/chroot_tmpdir/scmroot/mingw-glslang'...
$ git fetch origin 7fdb66475557250551ec0ba227c654e764647598:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-glslang
 * [new ref]         7fdb66475557250551ec0ba227c654e764647598 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fdb664 Pass ENABLE_OPT=OFF