[CentOS] CentOS 7 installer bug?

The other admin I work with seems to have found a bug in the installer.
The setup is: two internal SSD drives. Once the GUI gets to "select drive
to install on", he goes to <ctl><alt><f2>, creates a RAID 1, and
partitions it, regular MBR (they're small). 1G for /boot as the first
partition, 2G for swap as the second partition, and the rest for / as
partition 3. fdisk shows the partition types correctly.

Back to the GUI, select the MD drive... and /boot's fine, / looks ok...
but the one for swap shows with 0 bytes.

Anyone else seen this behavior?

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