$ git clone -n https://src.fedoraproject.org/rpms/rust-glutin_egl_sys.git /var/lib/mock/f38-build-side-42-init-devel-1393755-31050/root/chroot_tmpdir/scmroot/rust-glutin_egl_sys
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1393755-31050/root/chroot_tmpdir/scmroot/rust-glutin_egl_sys'...
$ git fetch origin 44d73d2b28321e96a3f339a4b396c56905c5ee29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-glutin_egl_sys
 * [new ref]         44d73d2b28321e96a3f339a4b396c56905c5ee29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 44d73d2 Update to version 0.5.1; Fixes RHBZ#2229439