$ git clone -n https://src.fedoraproject.org/rpms/libtomcrypt.git /var/lib/mock/f39-build-1535889-36252/root/chroot_tmpdir/scmroot/libtomcrypt
Cloning into '/var/lib/mock/f39-build-1535889-36252/root/chroot_tmpdir/scmroot/libtomcrypt'...
$ git fetch origin fffcab9ea3696d546adb3f43682fd9d242a15b2a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libtomcrypt
 * [new ref]         fffcab9ea3696d546adb3f43682fd9d242a15b2a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fffcab9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild