$ git clone -n https://src.fedoraproject.org/rpms/mingw-glslang.git /var/lib/mock/f42-build-side-1-3533527-46362/root/chroot_tmpdir/scmroot/mingw-glslang
Cloning into '/var/lib/mock/f42-build-side-1-3533527-46362/root/chroot_tmpdir/scmroot/mingw-glslang'...
$ git fetch origin b9360c44e2e1e3e2ee6a67bc2233d44fbefbd888:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-glslang
 * [new ref]         b9360c44e2e1e3e2ee6a67bc2233d44fbefbd888 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9360c4 Update to 1.4.309.0