$ git clone -n https://src.fedoraproject.org/rpms/root.git /var/lib/mock/f39-build-2090782-50226/root/chroot_tmpdir/scmroot/root
Cloning into '/var/lib/mock/f39-build-2090782-50226/root/chroot_tmpdir/scmroot/root'...
$ git fetch origin 735b7a8692b7ed6d598f5ebe77a3fcbce4f602a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/root
 * [new ref]         735b7a8692b7ed6d598f5ebe77a3fcbce4f602a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 735b7a8 Use "standardsymbolsps" instead of "symbol" when searching for the Symbols font in order to not find Noto Symbols instead