$ git clone -n https://src.fedoraproject.org/rpms/ucarp.git /var/lib/mock/f39-build-1622279-38790/root/chroot_tmpdir/scmroot/ucarp
Cloning into '/var/lib/mock/f39-build-1622279-38790/root/chroot_tmpdir/scmroot/ucarp'...
$ git fetch origin 45c2bbe93c76bc9204c49f17c2b938f8f3fa9451:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ucarp
 * [new ref]         45c2bbe93c76bc9204c49f17c2b938f8f3fa9451 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45c2bbe Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild