$ git clone -n https://src.fedoraproject.org/rpms/libidn1.34.git /var/lib/mock/f41-build-side-1-2820677-33177/root/chroot_tmpdir/scmroot/libidn1.34
Cloning into '/var/lib/mock/f41-build-side-1-2820677-33177/root/chroot_tmpdir/scmroot/libidn1.34'...
$ git fetch origin 1876f2ffacb787ff7b987ef15ce8a23291af1634:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libidn1.34
 * [new ref]         1876f2ffacb787ff7b987ef15ce8a23291af1634 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1876f2f Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild