$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-float.git /var/lib/mock/f39-build-1542836-36525/root/chroot_tmpdir/scmroot/gap-pkg-float
Cloning into '/var/lib/mock/f39-build-1542836-36525/root/chroot_tmpdir/scmroot/gap-pkg-float'...
$ git fetch origin 295f2ccc450a4e2fbaec130ab847daa2cdf23f5d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-float
 * [new ref]         295f2ccc450a4e2fbaec130ab847daa2cdf23f5d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 295f2cc Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild