$ git clone -n https://src.fedoraproject.org/rpms/percolator.git /var/lib/mock/f39-build-1463743-33456/root/chroot_tmpdir/scmroot/percolator
Cloning into '/var/lib/mock/f39-build-1463743-33456/root/chroot_tmpdir/scmroot/percolator'...
$ git fetch origin 9f8fb7dfadea25ecfac3d63bcffd85aa931bdcef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/percolator
 * [new ref]         9f8fb7dfadea25ecfac3d63bcffd85aa931bdcef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f8fb7d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild