$ git clone -n https://src.fedoraproject.org/rpms/double-conversion.git /var/lib/mock/f39-build-1458853-33091/root/chroot_tmpdir/scmroot/double-conversion
Cloning into '/var/lib/mock/f39-build-1458853-33091/root/chroot_tmpdir/scmroot/double-conversion'...
$ git fetch origin 2fa844880ceb4621864c1fb7d570ae141196a47f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/double-conversion
 * [new ref]         2fa844880ceb4621864c1fb7d570ae141196a47f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2fa8448 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild