$ git clone -n https://src.fedoraproject.org/rpms/libunistring1.0.git /var/lib/mock/f40-build-786127-134186/root/chroot_tmpdir/scmroot/libunistring1.0
Cloning into '/var/lib/mock/f40-build-786127-134186/root/chroot_tmpdir/scmroot/libunistring1.0'...
$ git fetch origin 6f97111aef9bc6a5cc84aa40309b1fc785bfa391:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libunistring1.0
 * [new ref]         6f97111aef9bc6a5cc84aa40309b1fc785bfa391 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f97111 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild