$ git clone -n https://src.fedoraproject.org/rpms/rubygem-opengl.git /var/lib/mock/f40-build-777957-129669/root/chroot_tmpdir/scmroot/rubygem-opengl
Cloning into '/var/lib/mock/f40-build-777957-129669/root/chroot_tmpdir/scmroot/rubygem-opengl'...
$ git fetch origin 33b15a59dc2205d74699017570e6e66b54f32750:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-opengl
 * [new ref]         33b15a59dc2205d74699017570e6e66b54f32750 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 33b15a5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild