$ git clone -n https://src.fedoraproject.org/rpms/rust-glutin_egl_sys.git /var/lib/mock/f39-build-2170841-51032/root/chroot_tmpdir/scmroot/rust-glutin_egl_sys
Cloning into '/var/lib/mock/f39-build-2170841-51032/root/chroot_tmpdir/scmroot/rust-glutin_egl_sys'...
$ git fetch origin 57035bc8f2b77e5cc4315191ec6fd5fe66b27dca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-glutin_egl_sys
 * [new ref]         57035bc8f2b77e5cc4315191ec6fd5fe66b27dca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 57035bc Update to 0.6.0 (rhbz#2245429)