make release failure on releng/15.0

Hello, are there currently known issues with "make release" on the
releng/15.0 branch?

$ git clone --branch releng/15.0 --depth 1 https://git.FreeBSD.org/src.git src

$ cd ${FREEBSD_SRC:?}/release && env \
  MAKEOBJDIRPREFIX=${FREEBSD_OBJ:?} SRCCONF="${BUILD_DIR:?}/src.conf" SYSDIR="${FREEBSD_SRC:?}/sys" \
  make TARGET=${MACHINE:?} TARGET_ARCH=${MACHINE_ARCH:?} \
  release > ${BUILD_DIR:?}/release.log 2>&1 || echo "ERROR: make failed"

The above make command results in the following failure:

FreeBSD-base repository update completed. 338 packages processed.
All repositories are up to date.
pkg: Setting ABI requires setting OSVERSION, guessing the OSVERSION as: 1500000
/usr/libexec/flua: /home/user/freebsd/src/release/scripts/pkgbase-stage.lua:49: assertion failed!
stack traceback:
        [C]: in function 'assert'
        /home/user/freebsd/src/release/scripts/pkgbase-stage.lua:49: in upvalue 'select_packages'
        /home/user/freebsd/src/release/scripts/pkgbase-stage.lua:101: in local 'main'
        /home/user/freebsd/src/release/scripts/pkgbase-stage.lua:107: in main chunk
        [C]: in ?
*** Error code 1

Stop.
make: stopped making "release" in /home/user/freebsd/src/release