$ git clone -n https://src.fedoraproject.org/rpms/falkon-pdfreader.git /var/lib/mock/f39-build-1629157-39520/root/chroot_tmpdir/scmroot/falkon-pdfreader
Cloning into '/var/lib/mock/f39-build-1629157-39520/root/chroot_tmpdir/scmroot/falkon-pdfreader'...
$ git fetch origin 3ee4e5831e2d63ff3d60664a56bcad2c9ba57d05:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/falkon-pdfreader
 * [new ref]         3ee4e5831e2d63ff3d60664a56bcad2c9ba57d05 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3ee4e58 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild