$ git clone -n https://src.fedoraproject.org/rpms/openexr2.git /var/lib/mock/f40-build-2511315-61710/root/chroot_tmpdir/scmroot/openexr2
Cloning into '/var/lib/mock/f40-build-2511315-61710/root/chroot_tmpdir/scmroot/openexr2'...
$ git fetch origin b1540c02f3618f95aabc88e006c6f7c2741c99a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openexr2
 * [new ref]         b1540c02f3618f95aabc88e006c6f7c2741c99a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1540c0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild